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Apple Whittles Down 1 Of 2 Touch Screen Patents At PTAB The Patent Trial and Appeal Board has rejected one of Apple's challenges to claims in a mobile device user interface patent while ruling that most of the challenged claims in another patent were invalid. The decision... Read the full IIPLA article: https://iipla.org/news/apple-whittles-down-1-of-2-touch-screen-patents-at-ptab