Limitations of Result-Based Functional Language and Generic Computer Components in Patent Eligibility

Bo Xiao | May 2, 2023

Hawk Technology Systems, Llc V. Castle Retail, LLC

Before REYNA, HUGHES, and CUNNINGHAM, Circuit Judges.

Summary

      The district court granted Castle Retail’s motion, finding that the patent claims were directed towards the abstract idea of storing and displaying video without providing an inventive step to transform the abstract idea into a patent-eligible invention. The district court dismissed Hawk’s case, and Hawk appealed. The Federal Circuit upheld the district court’s decision, affirming that the patent claims were invalid under 35 U.S.C. § 101.

Background

      Hawk Technology Systems is the owner of a US Patent  No. 10,499,091 ( the ’91 patent) entitled “High-Quality, Reduced Data Rate Streaming Video Product and Monitoring System.” The patent was filed in 2017 and granted in 2019, with priority claimed back to 2002. It describes a technique for displaying multiple stored video images on a remote viewing device in a video surveillance system, using a configuration that utilizes existing broadband infrastructure and a generic PC-based server to transmit signals from cameras as streaming sources at low data rates and variable frame rates. The patent claims that this approach reduces costs, minimizes memory storage requirements, and enhances bandwidth efficiency.

      Hawk Technology Systems sued Castle Retail for patent infringement in Tennessee, alleging that Castle Retail’s use of security surveillance video operations in its grocery stores infringed on Hawk’s patent. Castle Retail moved to dismiss the case, arguing that the patent claims were invalid under 35 U.S.C. § 101, as they were directed towards ineligible subject matter.

      The ‘091 patent contains six claims, but the appellant, Hawk Technology Systems, did not assert that there was any significant difference between the claims regarding eligibility. As a result, claim 1 was selected as representative, which recites:

1. A method of viewing, on a remote viewing device of a video surveillance system, multiple simultaneously displayed and stored video images, comprising the steps of:

receiving video images at a personal computer based system from a plurality of video sources, wherein each of the plurality of video sources comprises a camera of the video surveillance system;

digitizing any of the images not already in digital form using an analog-to-digital converter;

displaying one or more of the digitized images in separate windows on a personal computer based display device, using a first set of temporal and spatial parameters associated with each image in each window;

converting one or more of the video source images into a selected video format in a particular resolution, using a second set of temporal  and spatial  parameters associated with each image;

contemporaneously   storing   at   least   a subset of the converted images in a storage device in a network environment;

providing a communications link to allow an external viewing device to access the storage device;

receiving, from a remote viewing device remoted located remotely from the video surveillance system, a request to receive one or more specific streams of the video images;

transmitting, either directly from one or more of the plurality of video sources or from the storage device over the communication link to the remote viewing device, and in the selected video format in the particular resolution, the selected video format being a progressive video format which has a frame rate of less than substantially 24 frames per second using a third set of temporal and spatial parameters associated with each image, a version or versions of one or more of the video images to the remote viewing device, wherein the communication link traverses an external broadband connection between the remote computing device and the network environment; and

displaying only the one or more requested specific streams of the video images on the remote computing device.

      In September 2021, the district court granted Castle Retail’s motion to dismiss the case. The court found that the claims in Hawk’s ‘091 patent failed the two-part Alice test. The court determined that the ‘091 patent is directed to an abstract idea of a method for storing and displaying video, and that the claimed elements are generic computer elements without any technological improvement.

      Hawk’s argument that the temporal and spatial parameters are the inventive concept was also rejected, as the claims and specification failed to explain what those parameters are or how they should be manipulated. The district court also found that the claimed “analog-to-digital converter” and “personal computer based system” were not technological improvements, but rather generic computer elements. Additionally, it determined that the “parameters and frame rate” defined in the claims and specification did not appear to be more than manipulating data in a way that has been found to be abstract.

      The district court concluded that the claims can be implemented using off-the-shelf, conventional computer technology and entered judgment against Hawk. Hawk appealed the decision.

Discussion   

       The Federal Circuit applied Alice step one in this case to determine if the ’091 patent claims were directed to an abstract idea. They agreed with the district court’s conclusion that the claims were directed to the abstract idea of  “storing and displaying video.”

      The Federal Circuit further clarified that the claims are directed to a method of receiving, displaying, converting, storing, and transmitting digital video “using result-based functional language.” Two-Way Media Ltd. v. Comcast Cable Commc’ns, LLC, 874 F.3d 1329, 1337 (Fed. Cir. 2017). The claims require various functional results of “receiving video images,” “digitizing any of the images not already in digital form,” “displaying one or more of the digitized images,” “converting one or more of the video source images into a selected video format,” “storing at least a subset of the converted images,” “providing a communications link,” “receiving . . . a request to receive one or more specific streams of the video images,” “transmitting . . . a version of one or more of the video images,” and “displaying only the one or more requested specific streams of the video images.” 

      Hawk argued that the ’091 patent claims were not directed to an abstract idea but to a specific technical problem and solution related to maintaining full-bandwidth resolution while providing professional quality editing and manipulation of digital video images. However, this argument failed because the Federal Circuit found that the claims themselves did not disclose how the alleged goal was achieved and that converting information from one format to another is an abstract idea. Furthermore, the claims did not recite a specific solution to make the alleged improvement concrete and, at most, recited abstract data manipulation. Therefore, the ’091 patent claims lacked sufficient recitation of how the purported invention improved the functionality of video surveillance systems and amounted to a mere implementation of an abstract idea.

      At Alice step two, the claim elements were examined individually and as a combination to determine if they transformed the claim into a patent-eligible application of the abstract idea. The district court found that the claims did not show a technological improvement in video storage and display and that the limitations could be implemented using generic computer elements.

      Hawk argued that the claims provided an inventive solution that achieved the benefit of transmitting the same digital image to different devices for different purposes while using the same bandwidth, citing specific tools, parameters, and frame rates.     The Federal Circuit acknowledged that the claims mentioned “parameters.” However, the claims did not specify what these parameters were, and at most they pertained to abstract data manipulation such as image formatting and compression. Hawk did not contest that the claims involved conventional components to carry out the method. The Federal Circuit also noted that the ‘091 patent affirmed that the invention was meant to “utilize” existing broadband media and other conventional technologies. Thus, the Federal Circuit found that there is nothing inventive in the ordered combination of the claim limitations and noted that Hawk has not pointed to anything inventive.

      The Federal Circuit determined that the claims in the ‘091 patent did not transform the abstract concept into something substantial and therefore did not pass the second step of the Alice test. As a result, the Federal Circuit concluded that the ‘091 patent is ineligible since its claims address an abstract idea that was not transformed into eligible subject matter.       

Takeaway

  • Reciting an abstract idea performed on a set of generic computer components does not contain an inventive concept.
  • Claims that use result-based functional language in combination with generic computer components may not be sufficient to transform an abstract idea into patent-eligible subject matter.

A Picture is Worth a Thousand Words in Establishing Public Use When Utility is Ornamental

Stephen G. Adrian | April 3, 2023

In re WinGen LLC

Decided: February 2, 2023

Before Lourie, Taranto, and Stoll (Opinion by Lourie)

Summary

            After reading this nonprecedential decision, one may wonder why it was not designated precedential, in view of quotes from the decision such as “what is necessary for an invalidating prior public use of a plant has not been considered by this court” and “This case therefore presents a unique question.” Nonetheless, a number of very interesting topics are raised regarding different ways to secure patent protection (a plant patent and/or a utility patent), and what may be considered an invalidating public use. This decision becomes more interesting when exploring the background of the patent in question which was not discussed in the decision, namely, why was a reissue pursued in the first place. Based on the author’s opinion, the reissue application may have become necessary due to a misunderstanding of the invention by both the Examiner and the prosecuting attorney.

Background

            U.S. Patent No. 9,313,959 is directed to a Calibrachoa plant. Claim 1 is representative:

1. A Calibrachoa plant comprising at least one inflorescence with a radially symmetric pattern along the center of the fused petal margins, wherein said pattern extends from the center of the inflorescence and does not fade during the life of the inflorescence,

and wherein the Calibrachoa plant comprises a single half-dominant gene, as found in Calibrachoa variety ‘Cherry Star,’ representative seed having been deposited under ATCC Accession No. PTA-13363.

            Reissue Application 15/229,819 was filed as a broadening reissue to delete “representative seed having been deposited under ATCC Accession No. PTA-13363”.[1] During prosecution of the reissue application, a final rejection was made that included rejections for lack of written description, nonstatutory double patenting, lack of enablement, and prior public use. On appeal to the Board, the Board reversed all the rejections except for the prior public use rejections. The Board found that a display of ‘Cherry Star’ had been accessible to the public at an event at The Home Depot. This event was hosted by Proven Winners North America LLC, a common shareholder with the original assignee of the ‘959 patent, Plant 21 LLC. Proven Winners is a brand management and marketing entity. Plant 21 entrusted Proven Winners with samples of ‘Cherry Star’ to show at a private event at The Home Depot. At the event, the attendees were not permitted to take cuttings, seeds, or tissue samples of the plant. However, the attendees were provided with a leaflet to bring home that included a photograph and brief description of the plant. In addition, the visitors were under no obligations of confidentiality. The visitors were not provided with any gene or breeding information regarding ‘Cherry Star’. The handout is shown below:

            The Board’s decision also commented that it was undisputed that a complete invention comprising all the claimed characteristics[2] was on display at The Home Depot event.

            WinGen appealed to the CAFC, arguing that the Board erred in finding prior public use when all the claimed features were not made available to the public. In particular, the attendees would not have been aware of or able to readily ascertain that ‘Cherry Star’ resulted from a “single half dominant gene”, and thus the display was not an invalidating prior public use.

Discussion

            Under pre-AIA 35 U.S.C. 102(b), an applicant may not receive a patent for an invention that was in public use “more than one year prior to the date of application in the United States.” To determine an invalidating public use, the court considers whether the purported use (1) was accessible to the public or (2) was commercially exploited. Here, the CAFC commented that there was only one prior case involving prior public use of a plant (Delano Farms v. Cal. Table Grape Comm’n, 778 F.3d 1243 (Fed. Cir. 2015). That case involved the unauthorized growing of the claimed grapes in locations visible from public roads. Although the grapes were viewable to the public, they were not labeled in any way and there was no evidence that anyone recognized the grapes as the claimed varietal.

            The CAFC distinguished this prior case from what occurred at The Home Depot event. At the event, ‘Cherry Star’ was indisputably identified. Although the handout itself was not a public use, the leaflet confirms that the physical plant on display was in fact ‘Cherry Star’.

            The CAFC further commented that the use of ‘Cherry Star’ is purely ornamental, in contrast to the grapes in Delano Farms.

            The CAFC noted that this case presents a unique question with respect to a purpose of ornament than other decisions regarding alleged public uses. For example, in Motionless Keyboard Co. v. Microsoft Corp., 486 F.3d 1376 (Fed. Cir. 2007), there was no evidence showing the invention was used for its intended purpose (visual display of a keyboard did not constitute public use because it was not connected to a computer or other device).

            Although this all makes sense, whatever happened to WinGen’s argument regarding the claimed genetics (“comprises a single half-dominant gene”)? The CAFC dismissed this argument as WinGen “did not meaningfully present such an argument to the Board. We agree with the Director that such an argument was forfeited.” Had such an argument been made, it is likely there would have been a different outcome.

Background Notes

            I was curious why the reissue became necessary. I looked at the prosecution history of the original patent and noted several interesting things that occurred during prosecution. Prior to the first action, there were several third-party prior art submissions. This is indicative that there were competitors concerned about a utility patent issuing. One submission included a photograph of ‘Cherry Star’.  This photograph was initially entered by the USPTO, but then later expunged after the patent applicant filed a petition. A subsequent third-party submission included another photograph from a publication describing ‘Cherry Star’ which was entered into the record.

            The Examiner’s first office action included numerous rejections. An interview was conducted prior to filing a response which seemed productive in that the Examiner suggested amendment to include the semi-dominant gene as found in the deposited variety ‘Cherry Star’. However, there was also an objection made by the Examiner regarding the use of “tissue” in the specification instead of “seed” in reference to the biological material which was deposited. The applicant proceeded with the Examiner’s suggested amendment, but this may have been the mistake that led to the need for a reissue application. The original specification described that the plant is produced from tissue having been deposited. The use of “tissue” seems to have meant the genetic material as opposed to seeds. As described in the specification:

Additionally, and as known in the art, Calibrachoa plants can be reproduced asexually by vegetative propagation or other clonal method known in the art. For example, and in no way limiting, a Calibrachoa plant having at least one inflorescence with a radially symmetric pattern along the center of the fused petal margins, can be reproduced by (a) obtaining a tissue cutting from said plant, (b) culturing said tissue cutting under conditions sufficient to produce a plantlet with roots and shoots; and (c) growing said plantlet to produce a plant,

            In other words, the plants themselves are asexually reproduced. Growing plants from the seeds may not produce the claimed plant.


[1] Observed by the author from the image file wrapper of the reissue application.

[2] This admission or lack of dispute proves detrimental to the patentee.

A Claim term referring to an antecedent using “said” or “the” cannot be independent from the antecedent

Andrew Melick | February 24, 2023

Infernal Technology, LLC v. Activision Blizzard Inc.

Decided: January 24, 2023

Moore, Chen, Stoll. Opinion by Chen.

Summary:

Infernal sued Activision for infringement of its patents to lighting and shadowing methods for use with computer graphics based on nineteen Activision video games. Based on the construction of the claim term “said observer data,” Activision filed a motion for summary judgment of non-infringement. The CAFC agreed with the District Court’s analysis of the noted claim term and affirmed the motion for summary judgment of non-infringement.

Details:

Infernal owns the related U.S. Patent Nos. 6,362,822 and 7,061,488 to “Lighting and Shadowing Methods and Arrangements for Use in Computer Graphic Simulations” providing methods of improving how light and shadow are displayed in computer graphics. Claim 1 of the ‘822 patent is provided:

1. A shadow rendering method for use in a computer system, the method comprising the steps of:

[1(a)] providing observer data of a simulated multi-dimensional scene;

[1(b)] providing lighting data associated with a plurality of simulated light sources arranged to illuminate said scene, said lighting data including light image data;

[1(c)] for each of said plurality of light sources, comparing at least a portion of said observer data with at least a portion of said lighting data to determine if a modeled point within said scene is illuminated by said light source and storing at least a portion of said light image data associated with said point and said light source in a light accumulation buffer; and then

[1(d)] combining at least a portion of said light accumulation buffer with said observer data; and

[1(e)] displaying resulting image data to a computer screen.

(Emphasis added).

The parties agreed to the construction of the term “observer data” as meaning “data representing at least the color of objects in a simulated multi-dimensional scene as viewed from an observer’s perspective.” The district court adopted this construction. Based on this construction and the plain and ordinary meaning of the limitation “said observer data” in step 1(d), Activision filed a motion for summary judgment of non-infringement, and the district court granted the summary judgment.

On appeal, Infernal argued that the district court misapplied its own construction of “observer data.” Infernal argued that “observer data” can refer to different data sets in steps 1(a), 1(c) and 1(d), each different data set independently satisfying the “observer data” construction. Step 1(a) recites “providing observer data,” step 1(c) recites “comparing at least a portion of said observer data,” and step 1(d) recites “combining … with said observer data.” The reason Infernal applies this construction is due to their infringement theory summarized below:

In its infringement theory, for step 1(a) Infernal refers to albedo (color data), normal vector, position, diffuse, depth, and other observer data; for step 1(c), Infernal refers to normal vector and position data; and for step 1(d), Infernal refers to only albedo data. Thus, Infernal’s infringement theory relies on applying different obverser data for steps 1(a), 1(c) and 1(d). Infernal argued that “said observer data” in step 1(d) can refer to a narrower set of data than “observer data” in step 1(a) because both independently meet the district court’s construction of “observer data.”

In analyzing Infernal’s argument, the CAFC stated the principal that “[in] grammatical terms, the instances of [‘said’] in the claim are anaphoric phrases, referring to the initial antecedent phrase” citing Baldwin Graphic Sys., Inc. v. Siebert, Inc., 512 F.3d 1338, 1342 (Fed. Cir. 2008). The CAFC further stated that based on this principle, the term “said observer data” recited in steps 1(c) and 1(d) must refer back to the “observer data” recited in step 1(a), and concluded that “the ‘observer data’ in step 1(a) must be the same “observer data” in steps 1(c) and 1(d).” The CAFC stated that this analysis applies even though the district court’s construction of “observer data” encompasses “at least color data.” In concluding that term “observer data” cannot refer to different data among steps 1(a), 1(c) and 1(d), the CAFC stated:

Although the initial “observer data” in step 1(a) includes data that is “at least color data,” the use of the word “said” indicates that each subsequent instance of “said observer data” must refer back to the same “observer data” initially referred to in step 1(a). An open-ended construction of “observer data” (“data representing at least the color of objects”) does not permit each instance of “observer data” in a claim to refer to an independent set of data.

Regarding the district court’s finding that Infernal failed to raise a genuine issue of material fact, Infernal argued that the district court erred in its finding that the accused video games cannot perform the claimed steps in the specified sequence. The district court held that Infernal failed to raise a genuine issue of material fact as to the accused games performing limitation 1(d): “combining … with said observer data.”

The CAFC agreed with the district court. Referring to Infernal’s infringement theory diagram, the CAFC stated that for step 1(a), Infernal identified “observer data” as albedo (color data), normal vector, position, diffuse, depth, and other observer data, but for step 1(d), Infernal identified “said observer data” as only albedo (color data). “Because it is undisputed that the mapping of the Accused Games’s ‘observer data’ in step 1(a) is different than the mapping of the “observer data” in step 1(d), … there is no genuine issue of material fact as to whether the Accused Games infringe [step 1(d)].” The CAFC also pointed out that Infernal’s mapping for step 1(d) improperly excludes data that is mapped to “a portion of said observer data” in step 1(c).

Comments

In a footnote, the CAFC stated that this analysis is consistent with other cases in which the use of the word “said” or “the” refers back to the initial limitation, “even when the initial limitation refers to one or more elements.” When drafting claims, if you intend for a later recitation of the same limitation to refer to an independent instance of the limitation, then you will need to modify the language rather than merely using “said” or “the.”

It appears that if step 1(d) in Infernal’s claim referred to “at least a portion of said observer data,” Infernal would have had a better argument that the observer data in step 1(d) can be a narrower data set than the “observer data” in step 1(a). The CAFC also pointed out that Infernal knew how to do this because that is what they did in step 1(c) and chose not to in step 1(d).

Obvious Claim Limitation Fails to Present Different Issues of Patentability Needed to Deny Collateral Estoppel

Fumika Ogawa | February 16, 2023

Google LLC V. Hammond Development International, Inc.

Decided: December 8, 2022

Moore, Chen, and Stoll.  Opinion by Moore.

Summary

On appeal from an inter partes review (IPR) decision finding some claims of a first patent not unpatentable over prior art, where counterpart claims of a related, second patent had been invalidated in another IPR decision, the CAFC found that the second IPR decision has collateral estoppel effect on certain challenged claims of the first patent where slight difference in claim language immaterial to the question of validity in the underlying decision does not present different issues of patentability.

Details

            Google filed IPR petitions against Hammond’s patents including U.S. Patent Nos. 10,270,816 (“’816 patent”) and No. 9,264,483 (“’483 patent”).  Hammond’s challenged patents relate to a communication system that allows a communication device to remotely execute one or more applications.  The specification shared by these patents discloses that the inventive system  enables a user to check a bank account balance or airline flight status by using a cell phone or other communication devices to interact with application servers over a network, which in turn access database storing applications so as to perform the desired functionalities. As seen in Figs. 1A-1D, for example, the system may be implemented using a single application server or multiple application servers.

            In the ‘816 IPR, Google challenged all the claims of the patent, asserting different prior art combinations against different subsets of claims.  Relevant to this case are obviousness challenges of claims 1, 14 and 18 which recite, among other things, one or both of two particular limitations referred to as first[1] and second[2] “request for processing service” limitations, as summarized below:

Claims“request for processing service” limitations recitedReferences/Basis
Independent claim 1Both first and second limitationsGilmore, Dhara, and Dodrill
Independent claim 14First limitationGilmore and Creamer
Claim 18 dependent from claim 14Second limitationGilmore, Creamer and Dodrill

As to claim 1, Google asserted that Gilmore and Dodrill in combination would meet the first and second limitations.  As to claim 14, however, Google did not rely on Dodrill for the first limitation in particular.  Instead, Google included Dodrill solely to obviate the second limitation as recited in claim 18 dependent from claim 14.

            The above choice of references caused trouble to Google.  The Board, finding Gilmore and Dodrill in combination as teaching both the first and second limitations in claim 1, determined that the combination of Gilmore and Creamer would not do so with the first limitation as recited in claim 14.  Further, Google’s assertion of invalidity as to dependent claim 18 also failed with the contrary finding of claim 14; even though Google did rely on Dodrill for the second limitation as recited in claim 18, that reliance did not extend to the first limitation in parent claim 14.  On June 4, 2021, a final written decision was issued in the ‘816 IPR, determining that claims 1–13 and 20–30 would have been obvious, but not claim 14 and its dependent claims 15–19. 

            On April 12, 2021, prior to the ‘816 IPR decision, the ‘483 IPR had concluded in a final written decision invalidating all the challenged claims for obviousness over prior art including Gilmore and Dodrill.  Among those invalidated claims was claim 18 of the ‘483 patent, which recites both the first and second “request for processing service” limitations as in claim 18 of the ‘816 patent.

            Google appealed the IPR rulings on claims 14-19 of the ‘816 patent to the CAFC.  Google asserted, among other things, that collateral estoppel effect of the invalidity determination of claim 18 of the ‘483 patent renders claim 18 of the ‘816 patent also unpatentable.  Finding collateral estoppel as applicable to this case, the CAFC reversed as to claims 14 and 18, and affirmed as to claims 15-17 and 19.

No forfeiture of collateral estoppel

            As a preliminary matter, the CAFC found that Google’s omission of its collateral estoppel argument in the IPR petition does not cause forfeiture.  Since the issuance and the finality of the ‘483 final written decision took place only after Google’s filing of the ‘816 IPR petition, the argument based on non-existent preclusive judgement could not have been included in that petition.  As such, the CAFC held that Google is allowed to raise its collateral estoppel argument for the first time on appeal.

Collateral estoppel – Identicality requirement

            Noting that the collateral estoppel can apply in IPR proceedings, the CAFC recited the four requirements for the preclusive effect to exist under In re Freeman:

(1) the issue is identical to one decided in the first action; (2) the issue was actually litigated in the first action; (3) resolution of the issue was essential to a final judgment in the first action; and (4) [the party against whom collateral estoppel is being asserted] had a full and fair opportunity to litigate the issue in the first action.

Only the first element was disputed in the present case. Citing its precedents, the CAFC emphasized that the identicality requirement concerns identicality of “the issues of patentability” (emphasis original), rather than the claim language per se. As such, applicability of collateral estoppel is not affected by mere existence of slightly different wording used to depict a substantially identical invention so long as the differences between the patent claims “do not materially alter the question of invalidity,” which is “a legal conclusion based on underlying facts.”

Claim 18 – Invalid for collateral estoppel

            The CAFC held that collateral estoppel applies so as to render the claim 18 of the ‘816 patent unpatentable because it shares identical issues of patentability with the invalidated claim 18 of the ’483 patent.  Specifically, the CAFC noted that “only difference between the claims is the language describing the number of application servers”: The claim 18 of the ‘816 patent recites “a plurality of application servers” including “first one” and “second one” configured to perform certain respective functions specifically associated therewith, whereas the claim 18 of the ‘483 patent requires “one or more application servers” or “the at least one application server” to perform the requisite functionality.  The CAFC found that the difference is immaterial to the question of invalidity in the collateral estoppel analysis, relying on the Board’s factual findings that the above limitation of claim 18 of the ‘816 patent would have been obvious to a skilled artisan, as supported by Google’s expert evidence, which were not challenged by Hammond on appeal. 

Claim 14 – Invalid for invalidation of dependent claim 18

            Having found claim 18 unpatentable, the CAFC went on to hold that independent claim 14, from which claim 18 depends, is also unpatentable.  In so doing, the CAFC noted that the parties had agreed on the invalidity consequence of the parent claim based on the invalidated dependent claim[3].  In a footnote, the Opinion states that since Hammond failed to assert that Google’s collateral estoppel arguments should be limited to the references asserted in the petition, the impact of Google’s original invalidity challenge against claim 14—which does not use the same combination of references as claim 18—was not explored.

Claims 15-17 and 19 – Not unpatentable due to lack of collateral estoppel arguments

            The CAFC distinguished the remaining claims from claim 18 and claim 14.  Unlike claim 18, Google made no collateral estoppel arguments against claims 15-17 and 19.  Rather, Google’s arguments as to these claims relied on the Board’s obviousness findings as to parallel dependent claims.  Moreover, unlike claim 14, Hammad did not admit that invalidity of claim 18 is consequential to unpatentability of claims 15-17 and 19.  As such, Google failed to meet its burden to provide convincing arguments for reversal on appeal.

Takeaway

            This case depicts an interplay between collateral estoppel analysis on appeal and obviousness findings in underlying litigation: The identicality of the issues of patentability exists where the adjudicated and the unadjudicated claims are substantially the same with their only difference being a limitation that has been found as obvious.  Parties in parallel actions involving patent claims of the same family may want to be mindful of potential impact of obviousness determination as to a claim limitation unique to one patent but not in the other in the future inquiry of collateral estoppel.


[1] Recited as “the application server is configured to transmit … a request for processing service … to the at least one communication device” in claim 1 of the ‘816 patent.

[2] Recited as “wherein the request for processing service comprises an instruction to present a user of the at least one communication device the voice representation” in claim 1 of the ‘816 patent.

[3] “[T]he patentability of claim 14 rises and falls with claim 18.” During oral argument, this principle was noted referring to Callaway Golf Co. v. Acushnet Co. (Fed. Cir., August 14, 2009).

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