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Google, spurned once already, seeks mandamus anew over denied patent review

By Melissa Ritti ( November 24, 2025, 18:37 GMT | Comment) -- Google is again asking for mandamus relief from a discretionary denial of inter partes review, this time pointing to a 2019 holding by the US Court of Appeals for the Federal Circuit that patents are “open” to “reconsideration and possible cancelation” by the US Patent and Trademark Office “if it is determined ... that the patents should not have been issued in the first place.” Patent age, Google says, has no role to play in that analysis.The US Patent and Trademark Office’s emphasis on a patent owner’s “settled expectations” that a technology is no longer challengeable cannot be squared with the US Court of Appeals for the Federal Circuit’s decision in Celgene Corp. v. Peter, Google says....

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