Marking Estoppel

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Federal Circuit Finds Patent Marking is Circumstantial Evidence of Infringement

In Frolow v. Wilson Sporting Goods Co., the Federal Circuit refused to adopt the doctrine of marking estoppel, but held that evidence that Wilson had marked some accused tennis racket models constituted evidence of...more

Patent Watch: Frolow v. Wilson Sporting Goods Co.

On March 15, 2013, in Frolow v. Wilson Sporting Goods Co., the U.S. Court of Appeals for the Federal Circuit (Newman, Clevenger, Moore*) affirmed-in-part, reversed-in-part and remanded the district court's summary judgment...more

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