Posts Tagged: "General Hospital Corp. v. Sienna Biopharmaceuticals"

Appellant General Hospital Corp. (“GHC”) appealed the Board’s dismissal of an interference because the claims of its involved patent application lacked sufficient written description. The disclosure of a wide range with exemplary values does not provide written description support for a narrower claimed range, absent something to indicate the claimed range was considered critical or that inventor was in possession of the specific claimed embodiments. The Board cannot reject a motion to add a new claim to a patent application involved in an interference without explaining its findings.