Topic: the purpose of the 'written description' requirement is bro… · Go Syfert
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Topic #29353

3 canonical passages across 3 cases, quoted by 13 opinions in total. These passages cluster together because the same opinions keep quoting them side by side: they state parts of one doctrine. The anchor passage is from Vas-Cath Incorporated and Gambro, Inc. v. Sakharam D. Mahurkar, and Quinton Instruments Company.

#Case FlagCanonical passage Citers
1 Vas-Cath Incorporated and Gambro, Inc. v. Sakharam D. Mahurkar, and Quinton Instruments Company Anchor
cafc · 1991
green “the purpose of the 'written description' requirement is broader than to merely explain how to 'make and use'; the applicant must also convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention.” 7
2 In Re Norman K. Alton, Mary A. Peters, Yitzhak Tabinsky, and David L. Snitman
cafc · 1996
green “broader than to merely explain how to 'make and use'; the applicant must also convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention.” 3
3 Purdue Pharma L.P. v. Faulding Inc.
cafc · 2000
green “must immediately discern the limitation at issue in the claims.” 3

A red or yellow flag on a member means the underlying case has negative treatment: for those, check the case page before relying on the passage.

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