Dekut - Facebook Buys 750 IBM Patents To Defend Against Yahoo Facebook has just bought some troll repellant in the form of 750 patents for networking, software, and other technologies according to Bloomberg. If Yahoo relies any of those technologies, Facebook could use the patents to counteract Yahoo’s patent infringement lawsuit against it. Facebook was in danger of having to either settle with Yahoo or license its patents to avoid uncertainty heading into its IPO. It could have tried to invalidate the patents in court, but that case could have spilled over its IPO date and scared away Thu, 22 Mar 2012 18:41:05 UTC en