Another day, still another lawsuit. Visual Interactive Phone Concepts, a non-practicing entity that holds two videophone mailbox patents and has previously instigated patent infringement suits, filed three lawsuits in the Eastern District of Michigan on Wednesday against Apple, AT&T and US Cellular.

In all three complaints, Visual Interactive Phone Concepts claim the companies it’s suing violate its patents for “videophone interactive mailbox facility system and method of processing information.” However, the alleged infringements differ, which is presumably why the company filed three parallel suits instead of one multi-defendant complaint, reports “FOSS Patents” (http://macte.ch/fZRmg).

Apple is accused of infringement because it makes and sells “mobile communication devices that are videophones.” AT&T is being sued for providing “a mobile TV and video service in the United States. US Cellular’s alleged infringements relate to “a mobile TV and video service.”