Barnes & Noble takes on Microsoft's Android patents

Barnes & Noble strikes back in legal filing with 46 pages of examples attacking Microsoft's Android patents as trivial and insignificant

Microsoft's Android legal steamroller may just have hit a speed bump, in the form of a challenge over the validity of its patents by Barnes & Noble. Where other makers of Android devices have rolled over and agreed to pay Microsoft licensing fees, Barnes & Noble is fighting back -- and Microsoft may have met its match.

Microsoft sued Barnes & Noble in March for patent infringement in the Android-based Barnes & Noble Nook and Nook Color. Now Barnes & Noble has filed a Supplemental Notice of Prior Art. In the U.S. patent system, if an invention has been described in prior art, a patent on that invention is not valid. In all, Barnes & Noble lists more than 100 examples of prior art.

Legal documents filed by Barnes & Noble claim Microsoft is improperly expanding the scope of its patents in an attempt to dominate mobile operating systems that threaten its monopoly in personal computer OSes: "In addition to the oppressive restrictions and prohibitions in Microsoft's proposed licensing agreement, Microsoft is also demanding exorbitant licensing fees for the use of Android."

Yes, Barnes & Noble has rushed in where HTC, Samsung, and the others feared to tread.

Last year, Microsoft convinced mobile phone manufacturer HTC to pay an undisclosed amount for each phone it sold with Android installed. Microsoft's big guns started leaning on other firms earlier this year, extracting  patent license agreements. One by one they fell. First the smaller fry -- Acer, Itronix, Onkyo, Velocity Micro, ViewSonic, and Wistron -- then mighty Samsung settled and agreed to pay Microsoft for each Samsung Android device that hits the streets. As a result, more than half of the Android phones sold in the United States right now carry a Microsoft tax. Microsoft's probably making more from Android license fees than it is with its own mobile software.

Microsoft general counsel Brad Smith said in a blog post noting Samsung's acquiescence, "These agreements prove that licensing works. They show what can be achieved when companies sit down and address intellectual property issues in a responsible manner. The rapid growth of the technology industry, and its continued fast pace of innovation are founded on mutual respect for IP."

But a more cynical person might say manufacturers probably took a look at the cost of the proffered Android-related patent license, compared it to the cost of fighting Microsoft, and decided to fold.

But the folks at Barnes & Noble looked at the cost of settling and the cost of fighting, and decided to fight. Finally, one organization (other than Google, of course) is willing to take on Microsoft's patent lawyers, mano a mano.

Barnes & Noble's Supplemental Notice of Prior Art (PDF) covers five patents Microsoft is using in its complaint against Barnes & Noble: numbers 5778372, 5889522, 6339780, 6891551, and 6957233. All of the patents cover behaviors that are, at least on the surface, fundamental to many operating environments. Barnes & Noble's Supplemental Notice contains 43 pages of prior art for those five patents -- instances where the behavior described in the patent existed prior to the patent being issued.

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