By Dan Levine SAN FRANCISCO (Reuters) - Google Inc has asked the U.S. Supreme Court to wade into contentious litigation against Oracle Corp , arguing that the high court must act to protect innovation in high tech. Google's request, filed on Monday, seeks to overturn an appeals court ruling that found Oracle could copyright parts of the Java programming language, which Google used to design its Android smartphone operating system. Representatives for Oracle and Google could not immediately comment on Wednesday. Google's Android is the world's best-selling smartphone platform. ...



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