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USPTO curbs patent challenges as Europe and Japan recalibrate enforcement

By Toko Sekiguchi ( September 18, 2025, 12:27 GMT | Insight) -- At a Tokyo conference, legal experts said the USPTO’s new review limits strengthen patents and raise questions of agency authority, as Europe and Japan reshape enforcement, signaling a global shift in IP strategy.The US is remaking the way patents are challenged, using administrative discretion to tilt the balance toward patent owners and raising questions about statutory authority....

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