TecSec, Inc. v. Intl Business Machines, No. 12-1415 (Fed. Cir. Oct. 2, 2013)

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.

TecSec, Inc. appeals from the district court’s entry of judgment that the d efendant-appellees (the “defendants”) do not infringe various claims of three TecSec patents: U.S. Patent Nos . 5,369,702 (the “’702 Patent ”); No. 5,680,452 (the “’452 Patent”); and No. 5,898,781 (the “’781 Patent”). Because the district court incorrectly construed the claims, this court affirms-in-part, reverses-in-part, and remands for further proceedings. BACKGROUND This case relates to methods and systems that secure computer data.