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PTAB Nixes Microsoft Challenge To Philips IP As Repetitive

Law360 (June 12, 2018, 5:11 PM EDT) -- The Patent Trial and Appeal Board has declined to review two Philips patents covering content authentication technology, finding the prior art Microsoft relied on in its challenge had already been considered by a patent examiner during prosecution of the patents.

The PTAB on Friday denied Microsoft Corp.’s challenges to U.S. Patent Numbers 9,436,809 and 8,543,819, which both come from the same parent application, finding that a patent examiner had already looked into the same prior art reference known as Willey when the application for Koninklijke Philips...
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