Fiber Optic Patent Description Too Vague, Fed. Circ. Says

Law360, New York (May 10, 2017, 8:49 PM EDT) -- The Federal Circuit ruled Wednesday that a fiber optic technology patent held by Cirrex Systems LLC is invalid for lack of a written description, handing Cisco Systems Inc. a win after a PTAB re-examination it initiated.

In a precedential decision, a three-judge panel corrected the Patent Trial and Appeal Board’s construction of two key terms related to the technology and held that under the right interpretation, the claims lacked a sufficient written description.

“Because all the claims on appeal are unpatentable for lack of written description support, we affirm, in part, and reverse, in part,” according to the opinion.

Cisco originally...

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