Matthew Powers, cochair of litigation at Weil, Gotshal & Manges, is leaving the firm after 18 years to start his own plaintiffs shop, sibling publication The Recorder reported Friday (subscription required). News of the split, which Powers and Weil described as friendly, came the same day as the announcement that two other patent litigators, including a patent litigation group cochair, had left Weil for Paul Weiss.

According to the Recorder, Powers’s new firm, Tensegrity, “will focus on handline straightforward plaintiffs work on a contingency basis.” Joining him in the new endeavor, the Recorder reports, will be another Weil veteran, litigation partner Steven Cherensky.