Another day, another lawsuit. Potter Voice Technologies, a small Colorado company, is suing Apple, Google, Microsoft and just about all smartphone companies for patent infringement.

According to the IDG News Service (, 15 vendors and their affiliated companies have been sued in the U.S. District Court for the District of Colorado. The suit revolves around Apple’s Siri technology and Google Voice Commands, as well as a technology called Windows Speech Commands.

It cites a single U.S. patent, number 5,729,659 for a method and apparatus for controlling a digital computer using oral input. The patent was issued to Jerry L. Potter in 1998.

Other companies named in the suit include Nokia, Research In Motion, Samsung Electronics, Sony, LG Electronics, Motorola Mobility, ZTE, Huawei Technologies, Kyocera, Sharp and Pantech.