Fed Circ. Backs DuPont's Semiconductor IP Win
While a District of Arizona jury in July 2010 rejected DuPont's claims that the patents in suit — 5,958,288; 5,980,775; 5,527,423; and 6,068,787 — were invalid and the '775, '787 and '288 patents were unenforceable, it granted DuPont a declaratory judgment that it had not infringed the patents.
Cabot appealed the...
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