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US Supreme Court Limits Estoppel Rule In Minerva Surgical v. Hologic

 
• By Elizabeth Orr

The ruling keeps the principle of assignor estoppel in place, but limits its use to situations where an inventor’s claims in court directly contradict those in the patent.

Supreme Court and patents

The US Supreme Court preserved but narrowed an inventor’s right to later argue that their patent is not valid in Minerva Surgical v. Hologic, the second high court case this month to involve the medical device industry.

The court issued its 5-4 ruling on 29 June, making it one of the last opinions to be released for...

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