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Microsoft, Enfish Can't Shake PTAB Rulings At Fed. Circ.

Law360, Los Angeles (November 30, 2016, 10:06 PM EST) -- A Federal Circuit panel on Wednesday affirmed a series of Patent Trial and Appeal Board decisions stemming from Microsoft Corp.’s push to invalidate Enfish LLC’s database technology patents, finding that the board correctly rejected some challenges while granting others.

Microsoft in September 2013 filed five inter partes review petitions against Enfish’s patents after the company sued Microsoft in a patent infringement case. The resulting PTAB review was a mixed bag on the asserted claims, finding that some, but not all, of the challenged claims unpatentable.

Both Enfish and...
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