If nothing else, you've got to admire the tenacity of a Connecticut-based firm called USA Video Interactive, which just days after losing what seems to be a final appeal in its lawsuit against Movielink, decided to go after almost all of the country's major cable operators for supposedly infringing on the same patent. Comcast, Cox, Charter, and Time Warner (disclosure: Time Warner owns the company that owns the network that includes Engadget) are all named in a suit filed Tuesday in a U.S. District Court in Texas by USA Video (maybe Cablevision got spared because of all its other legal woes), which claims that like Movielink, the cable giants are violating its so-called Store-and-Forward Video-on-Demand patent (#5,130,792, filed in 1990) by using protected technology in their own VOD services. Besides making patents, the company also offers various products revolving around email, web tools, digital video watermarking, and content delivery infrastructure, so it's probably not appropriate to bunch it in with other lawsuit-happy -- but seemingly less legitimate -- claimants such as NTP and Visto.

[Via TechWeb and Digital Media Thoughts]

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Cable giants being sued for VOD patent infringement