Howrey has lured away the managing partner of Dewey Ballantine’s shrinking Silicon Valley office, another aftershock of the New York firm’s failed merger with Orrick, Herrington & Sutcliffe.

Jeannine Yoo Sano, who was also the co-chairwoman of the IP litigation practice group at Dewey, will be joining Howrey’s East Palo Alto, Calif., office on May 1.