Patent Case Watch

Patent opinions from the Eastern District of Texas and the U.S. Court of Appeals for the Federal Circuit

Fed. Cir.

Prism Technologies LLC v. Sprint Spectrum L.P., No. 18-1108 (Fed. Cir. Feb. 1, 2019)

Affirmed
Invalidity (§ 102/§ 103) Summary Judgment
Court
U.S. Court of Appeals for the Federal Circuit
Case No.
No. 18-1108
Decided
February 1, 2019
Judge
Taranto, J.
Document
Nonprecedential Opinion
Length
13 pages

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.

Prism Technologies, LLC is the owner of two related patents, U.S. Patent Nos. 8,127,345 and 8,387,155, that address access to information over networks that are “untrusted.” In 2012, Prism brought suits in the District of Nebraska against several cellphone carriers, among them Sprint Spectrum L.P. and T -Mobile USA, Inc. , alleging infringement of th ose patents (plus one other patent that is not at issue and so is not further mentioned here). We have before us an appeal (the second appeal) in the suit against Sprint.

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