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Who Owns the Land Under the Trail?

by Dennis Crouch

Barron v. United States, Nos. 2025-1179, -1459 (Fed. Cir. Oct. 22, 2026). This is not a patent case, but decisions from the Court of Federal Claims are also appealed to the Federal Circuit -- making t...


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Two Board Decisions Reaching Past the Briefs

by Dennis Crouch

I have been reading a number of PTAB decisions recently. Two new ones from this week caught my attention because they both turned on claim-reading doctrines that the Board raised on its own. The Board label...


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Supreme Court Patent Cases

by Dennis Crouch

This is an update to my September post on the Supreme Court's patent docket. The big news is the denial of certiorari in the IPR discretionary denial case of


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PTAB Affirmance by Rejection Type, 2009–2026

by Dennis Crouch

My October 18 post looked at Section 101 in PTAB ex parte appeals. This one looks at the other rejection types, using the same parsed decisions plus a rejection-by-rejection reading of the 35 thousand app...


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Can Your Computer Corroborate Your Invention Date?

by Dennis Crouch

The Federal Circuit has affirmed the PTAB's decision siding with the patentee Valtrus -- upholding all of the claims of its US6728704 against Google's IPR challenge. Google LLC v. Valtrus Innovations Ltd., No. 20...


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