SAN FRANCISCO — Lawyers at San Jose’s MacPherson, Kwok, Chen & Heid are hoping that, as they give Haynes and Boone two footholds in California, the Texas-based Am Law 200 firm will improve their ability to compete for bigger and more diverse work.

MacPherson, Kwok , a 21-lawyer intellectual property law boutique founded in 2002, is merging into Haynes and Boone, a corporate firm with more than 500 lawyers. The deal, announced Tuesday, gives Haynes its first offices in California — in San Jose and Orange County.