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District Court's Markman Ruling Has No Preclusive Effect On PTO Reexam

Client Alert | 1 min read | 08.24.07

The Federal Circuit, in In Re Trans Texas Holdings Corp., (No. 2006-1559, -1600, Aug. 22, 2007), affirms a Board's Reexamination decision that found that each of the claims of two related patents were invalid under 35 U.S.C. § 103(a) as obvious over the prior art. The Court rejects the appellant's argument that the Board should have given preclusive effect to a district court's Markman order, which had construed the claims in their favor in a prior litigation. The Court holds that issue preclusion is not warranted because the PTO was not a party to the earlier litigation, and as a result, did not have a "full and fair opportunity" to litigate the claim construction issues.

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Client Alert | 13 min read | 10.30.25

Federal and State Regulators Target AI Chatbots and Intimate Imagery

In the first few years following the public launch of generative artificial intelligence (AI) in the autumn of 2022, litigation related to AI focused primarily on claims of copyright infringement. Suits revolved around allegations that the data on which AI models train, and/or the output they produce, infringe upon the intellectual property rights of others. (While some of these cases have settled or reached preliminary judgments, many remain ongoing.)...