Author Archives: Warren Woessner

Regents of the U. of Cal. v. Broad Inst. – “Just The Facts, Ma’am.”

The central theme in this interference decision involving U.S. Pat. No. 8,697,359 is the amount and type of evidence required to support the conception of an invention. Joe Friday wanted the witness to focus on the facts of the matter, … Continue reading

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Regeneron v. Mylan, “It Ain’t Necessarily So.”

Regeneron v. Mylan, appeal nos. 2024-2058, 2024-2147 (Fed. Cir., March 5, 2025) is the most recent appeal in a long line of Hatch-Waxman suits filed by Regeneron to block generic versions of its VEGF antagonist (or “trap”) EYLEA®, that is … Continue reading

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Obviousness-type double patenting in the Age of the Twenty-Year Term and Patent Term Adjustment

Obviousness-type double patenting (ODP) attempts to prevent the term of a “reference patent” claiming an obvious variant of a parent patent to exceed the term of the parent. This fulfills the mandate of the patent statute of “one patent per … Continue reading

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Allergan v. Sun – A Glidant Slips Past the Written Description Requirement

The most interesting part of this decision by the Fed. Cir. (No. 24- 1061, Aug. 13, 2024) is that the court was faced with an argument by Sun that Allergan’s claims in U.S. Pat. No.11,311,516 et al. are invalid as … Continue reading

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