SAN FRANCISCO — Two patent litigation partners are switching firms. Steven Baik is joining Sidley Austin in Silicon Valley, and Shane Brun is starting at Goodwin Procter in San Francisco.

Baik is departing Reed Smith, where he worked for three years litigating patent cases in the semiconductor, power electronics and software industries. His recent clients have included Toshiba, Realtek Semiconductor Corp., Netgear, and Gateway as well as its parent company ACER America Corp.