Same difference: A broad interpretation of “contrast” renders patented design obvious in view of prior art showing a similar “level of contrast”.
| October 19, 2020
Sealy Technology, LLC v. SSB Manufacturing Company (non-precedential)
August 26, 2020
Before Prost, Reyna, and Hughes (Opinion by Prost).
Summary
In nixing a design patent purporting to show “contrast” between design elements, the Federal Circuit broadly interprets “contrast” in the claimed design as not requiring a level of contrast that is different than what is available in the prior art.
Details
In their briefs to the Federal Circuit, Sealy Technology, LLC (“Sealy”) told the story about how, during a slump in sales around 2009, they re-designed their Stearns & Foster luxury-brand mattresses to visually distinguish their mattresses in a marketplace overrun with white or otherwise monochromatic mattress designs.
To be visually distinct, Sealy incorporated a “bold” combination of contrast edging running horizontally along the edges of the mattress and around the handles on the mattress.
Sealy claimed this design in their U.S. Design Patent No. 622,531 (“D531 patent”). The D531 patent claimed “[t]he ornamental design for a Euro-top mattress design, as shown and described”, with Figure 1 being representative:
The D531 patent did not contain any textual descriptions of the contrast edging in Sealy’s mattress design.
Sealy’s dispute with Simmons Bedding Company (“Simmons”) began shortly after the D531 patent issued, when in 2010, Sealy sued Simmons for infringing the D531 patent. The product at issue was Simmons’s Beautyrest-brand mattress:
in 2011, Simmons sought an inter partes reexamination of the D531 patent. During the first round of the reexamination, the Examiner interpreted the claimed design as including the following elements:
- The horizontal piping along the edges of the top and bottom of the mattress and along the top flat surface of the pillow top layer has a contrasting appearance.
- The [eight] flat vertical handles each have contrasting sides of edges running vertically with the length of the handles.
However, the Examiner declined to adopt any of Simmons’s requested anticipation and obviousness challenges. And when Simmons appealed the Examiner’s refusal to the Patent Trial and Appeal Board, Sealy vouched for the Examiner’s interpretation.
Unfortunately for Sealy, the Board on appeal entered new obviousness rejections. A second round of the reexamination followed. This time around, the Examiner adopted the Board’s rejections, which Sealy was unable to overcome even after a second appeal to the Board. Sealy then appealed the rejections to the Federal Circuit.
Sealy raised two main issues on appeal: first, whether the Board correctly construed the “contrast” in the claimed design; and second, whether the cited prior art was a proper primary reference.
On the question of claim construction, the Board had determined that “the only contrast necessary is one of differing appearance from the rest of the mattress”, whether by contrasting fabric, contrasting color, contrasting pattern, and contrasting texture.
Sealy argued that the Board’s construction was too broad. The proper construction, argued Sealy, should require a more specific level of contrast, that is, “a contrasting value and/or color” or “something that causes the edge to stand out or to be strikingly different and distinct from the rest of the design”.
Sealy relied on MPEP 1503.02(II), which provides that “contrast in materials may be shown by using line shading in one area and stippling in another”, that “the claim will broadly cover contrasting surfaces unlimited by color”, and that “the claim would not be limited to specific material”. Sealy also argued that a designer of ordinary skill in the art would have understood the D531 patent as requiring a more specific degree of contrast than the Board’s construction.
The Federal Circuit disagreed.
The Federal Circuit agreed with the Examiner and the Board’s findings that the patent contained no textual descriptions about contrast in the claimed design, that the drawings did not convey a different level of contrast than the prior art, and that Sealy’s argument regarding the understanding of a designer skilled in the art lacked evidentiary support..
On the question of obviousness, Sealy challenged the Board’s reliance on the Aireloom Heritage mattress shown below, arguing that the prior art mattress lacked the requisite contrast.
The weakness in Sealy’s argument was that its success depended entirely on the Federal Circuit adopting Sealy’s claim construction. And because the Federal Circuit did not find that the claimed design required a “strikingly different” contrast between the edging and the rest of the mattress, the Federal Circuit agreed with the Board’s determination that the prior art mattress had “at least some difference in appearance” between the edging and the rest of the mattress. This was sufficient to qualify the Aireloom Heritage mattress as a proper primary reference.
Takeaway
- Consider adding strategic textual descriptions in the specification to clarify the claimed design. For example, in Sealy’s case, since the contrast in the claimed design is provided in part by contrast in color, it may have been helpful to include such descriptions as “Figure 1 is a perspective view of a mattress showing a first embodiment f the Euro-top mattress design with portions shown in stippling to indicate color contrast”.
- If color contrast is important to the claimed design, consider adding solid black shading to the appropriate portions. 37 C.F.R. 1.152 (“Solid black surface shading is not permitted except when used to represent the color black as well as color contrast”).
- If the color scheme is important to the claimed design, consider filing a color drawing with the design application. One of Apple’s design patents on the iPhone graphical user interface includes a color drawing, which helped Apple’s infringement case against Samsung because similarities between the claimed design and the graphical user interface on Samsung’s Galaxy phones were immediately noticeable.
