In Re: Janssen Biotech, Inc.

PROST, Chief Judge.

Janssen Biotech, Inc., and New York University (collectively, “Janssen”) appeal from a decision of the United States Patent and Trademark Office (“PTO”), Patent Trial and Appeal Board (“Board”) resulting from an ex parte reexamination of U.S. Patent No. 6,284,471 (“’471 patent”). The Board affirmed the rejection of claims 1-7 of the ’471 patent as unpatentable under the doctrine of obviousness-type double patenting. Because the claims are barred under that doctrine, we affirm.

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“The doctrine of obviousness-type double patenting is intended to prevent the extension of the…