Now on Plaintiffs Side, Powers Takes on Microsoft

, The Litigation Daily


SAN FRANCISCO — IP litigator Matthew Powers has taken aim at Microsoft Corp., a company that counted him among its go-to defenders before he crossed over to plaintiffs work.

Represented by Powers' firm, Tensegrity Law Group, IPLearn-Focus sued Microsoft in U.S. District Court for the Northern District of California on Friday for patent infringement. The Mountain View-based company claims that Microsoft's Xbox products infringe three of its patents for aspects of systems with detached sensors. Microsoft did not respond to IPLearn-Focus's offer to discuss a licensing partnership, according to the complaint.

It's not the first time Powers has put former clients on the defensive since leaving Weil, Gotshal & Manges to pursue plaintiffs-side work in 2011. Powers has also sued Sony Corp. and, both clients from his days at Weil. Powers told The Recorder in August that neither Sony nor Amazon moved to disqualify him because he represented them on unrelated matters.

Powers represented Microsoft in 13 cases, according to a database maintained by Lex Machina, which tracks IP litigation.

Powers and Microsoft did not respond to requests for comment. No lawyers have yet entered appearances for Microsoft in the case.

This story was originally published by The Recorder, an American Lawyer affiliate.

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