Wellman Appeals Invalidation Of PET Resin Patents
Wellman's notice of appeal, filed Thursday in the U.S. District Court for the District of Delaware, will take the case to the U.S. Court of Appeals for the Federal Circuit.
“The appeal will include an appeal of all opinions, orders and rulings subsumed in the judgment or made prior to the judgment,” the notice said.
An attorney for Wellman...
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