"And, as Fried notes, Microsoft's patent horde has done little to help it defend itself from patent lawsuits, which have scaled up alongside the increasing size of its patent pile. Given how much Microsoft has to lose from patent trolls, it's perhaps surprising that it, in turn, it has rattled its own patent saber against Linux, claiming violation of 235 of its patents. Microsoft's chief patent counsel goes on to dub patents "the currency of innovation in our industry," but it's unclear what that currency buys Microsoft. Fame? Not really. Fortune? Nope, Microsoft already had that in Office and Windows, and patents haven't added much to the till."