Patent that cost Microsoft millions gets invalidated

http://arstechnica.com/tech-policy/2016/03/game-companies-knock-out-patent-that-slammed-microsoft-with-388m-verdict/

        One of the oldest and most profitable patent trolls, Uniloc, has
        been shot down. It's US Patent No. 5,490,216, which claims to
        own the concept of "product activation" in software, had all
        claims ruled invalid by the Patent Trademark and Appeals Board
        (PTAB). The process through which PTAB eliminated the patent is
        called an "inter partes review," or IPR.  The IPR process,
        created by the America Invents Act, is an increasingly popular
        and effective way for defendants to challenge patents outside
        federal courts. The PTAB case against Uniloc's patent was filed
        by Sega of America, Ubisoft, Cambium Learning Group, and Perfect
        World Entertainment. The board found that every claim in
        Uniloc's patent was anticipated or rendered obvious by an
        earlier patent.

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--Lauren--
Lauren Weinstein ([email protected]): http://www.vortex.com/lauren 
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I have consulted to Google, but I am not currently 
doing so -- my opinions expressed here are mine alone.
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