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Expert Analysis

Patent Strategy Considerations After Caltech Estoppel Ruling

By Michael Siem, Lynn Lehnert and Kenneth Matuszewski ( April 15, 2022, 1:10 PM EDT) -- On Feb. 4, the U. S. Court of Appeals for the Federal Circuit in California Institute of Technology v. Broadcom Ltd. clarified a key point regarding inter partes review estoppel by finding that this doctrine extends to all claims and invalidity grounds that the petitioner could have reasonably asserted in its IPR petition. [1]. . .

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