“Controversy!” — It is chasing Vonage all the way. No sooner, it solves one controversy; another drags the troubled VoIP startup to the court of law....

Klausner Technologies has submitted a lawsuit against Vonage in federal court in Texas. The company claimed that Vonage is infringing on patents as part of its voice...

The patent lawsuit filed against Google over GoogleTalk by Rates Technology has prompted many people to think who holds the patents for what and who holds the most...