Capital Security Systems, Inc. v. NCR Corporation, No. 17-2368 (Fed. Cir. Mar. 7, 2018)

From the Opinion

The passage below is extracted verbatim from the opening of the document. It has not been editorially summarized — consult the full opinion for the court's complete reasoning.

Capital Security Systems, I nc. filed a patent i n- fringement action against NCR Corporation and other defendants in the U.S. District Court for the Northern District of Georgia, asserting infringement of U.S. Patent Nos. 5,897,625; 7,653,600; 7,991,696; and 8,121,948. T he district court granted summary judgment of invalidity, holding indefinite the term 1) “ascertains an apparent signature” in claim 1 of the ’600 patent, claim 1 of the ’696 patent, and claims 1 and 2 of the ’948 patent; and 2) “transactional operator” in claim 15 of the ’625 patent .