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Federal Circuit Provides Further Guidance on Obvious Type Double Patenting For Patents Sharing Common Priority

On June 9th, 2025, the Federal Circuit issued a decision in Acadia Pharms. Inc. v. Aurobindo Pharma Ltd., affirming the district court’s grant of summary judgment of no invalidity for obviousness-type double patenting (OTDP)...more

Federal Circuit Limits Use of PTAB Unpatentability Rulings to Estop Patentees From Asserting Claims

On February 10, 2025, the Federal Circuit issued a precedential decision in Kroy IP Holdings, LLC v. Groupon, Inc., where the Court held that a “a prior final written decision of the [PTAB] of unpatentability on separate...more

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