Emboldened by a recent victory in a patent lawsuit, wireless e-mail software provider Visto Corp. said Monday it is suing Research In Motion Ltd., the maker of BlackBerry mobile devices, over similar claims.

It’s the latest twist in the tangle of legal battles over wireless e-mail, the most highly publicized of which ended in March with RIM agreeing to pay NTP Inc. $612.5 million to settle a four-year dispute.