Uh Oh. Verizon Sues Cox Communications

Verizon Communications has sued Cox Communications Inc., claiming infringement of eight patents for providing telephone services on a data network. So far, only Vonage has had to face lawsuits over VoIP intellectual property. What isn't clear is what happens if Verizon wins the lawsuit, either outright or through a negotiated settlement.

After Vonage was found to infringe patents Verizon, Sprint, Nortel and at&t, many of us have wondered whether lots of other service providers might be found to infringe the same patents. Many independent VoIP providers and even some technology suppliers apparently have wondered the same thing, even if they won't say so in public.

Apparently we might find out relatively soon. The wider implications are pretty clear: it is not clear what Cox might be doing that any other cable company affiliated with Cable Television Laboratories is not doing. So the damage conceivably would not be limited to independent providers of VoIP services but possibly every leading cable company operating in the U.S. market.

And since Cox does not create its own technology but buys it from the same suppliers thouse other cable operators are using, one has to wonder whether there might not be exposure even on the supplier side of the business, though it is extremely unlikely Verizon or other telcos would bother their own suppliers.

Granted, any damage would be annoying, not a grave danger to any leading U.S. cable company. It isn't so clear what the damage might be at a smaller cable company, though arguably the potential size of the infringing revenues wouldn't be that great, so the penalties would be commensurate.

Atlanta-based Cox, the third-largest U.S. cable TV company, should be ordered to pay cash compensation for using the inventions, Verizon says in a complaint filed in federal court in Norfolk, Va.

Vonage's troubles, it appears, might not be confined there alone.