Apple has added to its legal team ahead of key legal battles with rival companies Nokia, HTC, and Motorola. Bloomberg Businessweek reports that Apple and Nokia are squaring off before the International Trade Commission this week, with each side alleging intellectual property violations. “These are very well-known, deep-pocketed, high-end manufacturers,” said Lyle Vander Schaaf, an attorney at Brinks Hofer Gilson & Lione in Washington, who…