Tag: Prior Art
CAFC Upholds Validity of ‘First-Filed, First-Issued, Later Expiring Claim’
The U.S. Court of Appeals for the Federal Circuit (CAFC) recently made a significant ruling regarding patent law. The court decided that a “first-filed, first-issued, later-expiring claim cannot be invalidated by a later-filed, later-issued,...
CAFC Affirms ITC Invalidation of Sweetener Patent – Helsinn On-Sale Bar Ruling
The recent decision by the U.S. Court of Appeals for the Federal Circuit (CAFC) in Celanese International Corp. v. International Trade Commission (ITC) affirmed the ITC's ruling that Celanese's process patents were invalid due...