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35 U.S.C. 251(a) Patent Litigation

Patterson Belknap Webb & Tyler LLP

Naughty or Nice? Judge Figueredo Finds Inequitable Conduct in Revival Petition

On November 21, 2025, United States Magistrate Judge Valerie Figueredo recommended that the Court conclude that Plaintiff Sholem Weisner’s conduct in “reviving the ’165 patent constituted inequitable conduct” because, inter...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Reissue and the Original Patent Doctrine

As mentioned in last month’s IP Practice Tips, reissue applications are subject to additional legal doctrines founded in requirements of 35 U.S.C. § 251. One doctrine that has been operative since the first reissue statute...more

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