Visto sues Microsoft
Wireless e-mail firm Visto Corp. said on Thursday it filed a lawsuit against Microsoft Corp. for infringing Visto patents for technology that support e-mail on mobile devices.
Privately held Visto said it is seeking a permanent injunction to stop Microsoft from "misappropriating" technology from Visto and its co-founder developed nearly 10 years ago.
Microsoft was not immediately available to comment.
The suit comes as Visto's biggest rival, Research In Motion Ltd., faces a possible shut-down of its Blackberry mobile e-mail service after patent holding company NTP Inc. won an infringement ruling against RIM.
Visto said on Wednesday it signed a licensing agreement with NTP, which already licenses to Good Technology Inc., another rival, and Nokia.