An anonymous reader writes "Techdirt has a story about a new class action lawsuit against Netflix, claiming that the patents the company is using to sue Blockbuster were obtained fraudulently. Specifically, the lawsuit claims that Netflix was well aware of prior art, but did not include it in its patent filing, as required by law. The lawsuit also claims that Netflix then used these fraudulently obtained patents to scare others out of the market, in violation of antitrust law. 'Certainly, it makes for an interesting argument. Patents grant a government-backed monopoly -- which should get you around any antitrust violations. However, if that patent is obtained fraudulently, then I can see a pretty compelling claim that you've abused antitrust law. It would be interesting if other such cases start popping up (and, indeed, the lawyer who sent it to us said his firm is looking for additional patents to go after in this manner).'"