Opinion ID: 211753
Heading Depth: 2
Heading Rank: 1

Heading: standard of review

Text: We review a district court’s grant of summary judgment de novo. High Concrete Structures, Inc. v. New Enter. Stone & Lime Co., 377 F.3d 1379, 1382 (Fed. Cir. 2004). “A determination of claim indefiniteness is a legal conclusion that is drawn from the court’s performance of its duty as the construer of patent claims.” Personalized Media Communications., L.L.C. v. Int’l Trade Comm’n, 161 F.3d 696, 705 (Fed. Cir. 1998). Thus, as with claim construction, we exercise de novo review over the conclusion that a claim is indefinite under 35 U.S.C. § 112, ¶ 2. Id. 04-1564 6