In Anascape, Ltd. v. Nintendo of America, the Court of Appeals for the Federal Circuit (“CAFC”) reversed a jury verdict from a District Court that found Microsoft had infringed U.S. Patent No. 6,906,700 (“the ’700 patent”), owned by Anascape. The patent for a hand-operated controller used for video games was a continuation-in-part of U.S. Patent No. 6,222,525 (“the ’525 patent”) filed in 2000, and the infringed patent relied on the 1996 filing date of the parent ’525 patent to remain valid in light of intervening prior art sold by Sony in 1998. The CAFC held that the written description of the ’525 patent did not contemplate the broader scope claimed in the ’700 patent and therefore the claims in the ’700 patent were invalid. Continue Reading