Intellectual property litigators Christopher Kao and David Tsai have left Vinson & Elkins to join Pillsbury Winthrop Shaw Pittman as partners in San Francisco.

Kao and Tsai, both of whom are among the fewer than 50 registered foreign lawyers in Taiwan, will lead the Taiwan practice at Pillsbury Winthrop. The firm announced Monday that it intends to open an office later this year in Taipei, the capital of Taiwan, to serve its Asia-based intellectual property, technology and life sciences clients.