PTAB Rules GrafTech Patents Invalid As Obvious

Law360, New York (March 26, 2015, 6:32 PM EDT) -- The Patent Trial and Appeal Board ruled Wednesday that Laird Technologies Inc. has shown under America Invents Act inter partes review that three patents covering a natural graphite material used in small electronic devices are invalid as obvious in light of prior art.

In three final written decisions, the PTAB held that Laird sufficiently demonstrated that Graftech International Holdings Inc.'s U.S. Patent Numbers 6,482,520 B1, 6,982,874 B2 and 7,292,441 B2 would have been obvious over a number of pieces of prior art.

"We determine petitioner has shown, by a preponderance of the evidence, that claims 1, 2, 21, 22 and 23...

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