SAN FRANCISCO — Tensegrity Law Group’s Matthew Powers has prevailed in an appellate dispute over a license agreement from hell.

The U.S. Court of Appeals for the Federal Circuit on Friday ruled that intellectual property license shop Wi-LAN Inc. promised not to sue Ericsson Inc. over four patents to 3G technology but did not grant Ericsson “most favored licensee” status for any other patents it might acquire in the future.