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CAFC reminds applicants to be wary of functionally defined genus claims
| July 22, 2014
AbbVie Deutschland GMBH & CO., KG et al., v. Janssen Biotech, Inc.
July 1, 2014
Panel: Lourie, O’Malley, and Chen. Opinion by Lourie. Concurring opinion by O’Malley.
Summary
Functionally defined genus claims can be inherently vulnerable to invalidity challenge for lack of written description, especially in technology fields that are highly unpredictable, where it is difficult to establish a correlation between structure and function for the whole genus or to predict what would be covered by the functionally claimed genus. Functionally defined claims can meet the written description requirement if a reasonable structure-function correlation is established, whether by the inventor as described in the specification or known in the art at the time of the filing date.
Amending to exclude a species via a negative limitation may violate the written description requirement
| August 7, 2013
In re Bimeda Research & Development Limited
July 25, 2013
Panel: Rader, Clevenger, Prost. Opinion by Clevenger. Concurrence by Rader.
Summary:
The court held a negative limitation to exclude a genus does not provide 112, first paragraph written description support to claim a negative limitation that excludes a species, which species was never mentioned in the application.
Category: Case Summary, Claim Issues, Reexamination, Specification Issues, Written Description
Tags: genus > negative limitation > species > written description
Tags: genus > negative limitation > species > written description
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