REUTERS - Oct 30 - A New York state appeals court has rejected IAC's bid to dismiss a $2B lawsuit by a group of Tinder founders, executives and early employees who said it undervalued the dating app to avoid paying them billions of dollars. The decision affirmed a June 13 ruling by New York State Supreme Court Justice Saliann Scarpulla in Manhattan. IAC and Match separately sued Rad in January, accusing him of having secretly copied files and other proprietary information. They also filed a $400M countersuit in September accusing him of having recorded conversations with his superiors without their consent. Rad has sought to dismiss the January lawsuit, and in an Oct. 17 court filing Rad's lawyer called the countersuit "legally without merit" and an effective attempt to bankrupt Rad.