Dragon Intellectual Property, LLC v. Dish Network LLC

Stoll, Circuit Judge.

Appellees Dish Network LLC and Sirius XM Radio Inc. (collectively, “Dish”) sought inter partes review of claims 1-4, 7-10,13, and 14 of U.S. Patent No. 5,930,444-before the U.S. Patent and Trademark Office’s Patent Trial and Appeal Board. The Board instituted review and, in its final written decision, found all of the challenged claims obvious over the prior art. Dragon Intellectual Property, owner of the ’444 patent, appeals the Board’s decision. We affirm.

Background

The ’444 patent discloses a “simultaneous recording and playback apparatus.” ’444 patent col. 1 11. 1-2.…