Fight Over iPad Name Spills Into U.S. Court

Proview Electronics Co. has taken its legal battles with Apple Inc. to a U.S. court, claiming the iPhone maker used deception in buying the iPad trademark and shouldn't be allowed to keep it.

The lawsuit, which was filed in the Superior Court of the State of California in Santa Clara County on Feb. 17 but previously unreported, claimed that Apple had committed fraud when it used a company set up by one of its law firms, called IP...