TecSec, Inc. v. Int'l Bus. Mach. Corp., No. 12-1415 (Fed. Cir. 2013)
Annotate this CaseTecSec’s 702, 452, and 781 Patents derive from a common parent application and disclose a system and a method for providing security in a data network by nesting encrypted objects into other objects which are also encrypted, allowing a system to employ different security levels to restrict access to specific compartments of data. The district court found no infringement. The Federal Circuit reversed in part, holding that the court correctly construed the term “multi-level multimedia security,” but incorrectly limited the encrypted data to objects in multimedia form. The court also erred in holding that the term “digital logic means” was a means-plus-function limitation. TecSec may be able to prove infringement against every defendant except PayPal.
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