Board of Patent Appeals affirms rejection of Pfizer’s broadest patent claim to Viagra By Abby Lauer – Edited by Frank Sabatini Ex parte Pfizer, Inc., Appeal 2009-004106 (B.P.A.I. Feb. 12, 2010). Slip Opinion On February 12, the Board of Patent Appeals and Interferences affirmed a Patent Examiner’s rejection of claim 24 of Pfizer’s patent on the erectile dysfunction (ED) drug Viagra. The Board held that claim 24 of the patent was anticipated in the prior art by descriptions of the ...
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