DOD Urges Fed. Circ. To Uphold Toss Of F-35 Patent Suit

By Jimmy Hoover (May 2, 2016, 7:19 PM EDT) -- The Department of Defense and Elbit Systems have pressed the Federal Circuit not to revive a patent infringement lawsuit over helmet-mounted tracking technology used by F-35 fighter pilots, saying a lower court correctly found the patent ineligible for claiming concepts derived from the laws of physics.

In an appellee brief filed last week, the Pentagon said Thales Visionix Inc.'s U.S. Patent No. 6,474,159, describing uses of "inertial tracking sensors," claims mathematical equations used to determine the orientation of objects that were derived from "one of the most iconic laws of nature — Newton's Laws of Motion."

"Understanding and describing the motion...

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