Barnes & Noble says Microsoft is attacking Android with its patent-infringement claims

Barnes & Noble has filed its response to Microsoft's claim from earlier this year that the Android-based Nook e-reader violates Microsoft patents -- complete with allegations around Microsoft's tactics around patent-enforcement tactics and royalty-charging plans.

Barnes & Noble has filed its response to Microsoft's claim from earlier this year that the Android-based Nook e-reader violates Microsoft patents -- complete with allegations around Microsoft's tactics around patent-enforcement tactics and royalty-charging plans.

Microsoft sued Barnes & Noble, Foxconn and Inventec (the companies manufacturing the Nook) in March, claiming the Nook infringed on a handful of Microsoft's patents. A few days ago, the U.S. International Trade Commission began investigating Microsoft's complaint. (Patent-watcher Florian Mueller is expecting that the federal lawsuit is stayed for the duration of the corresponding ITC investigation.)

The Barnes & Noble response to Microsoft's complaint, dated April 25, makes some interesting counter-arguments regarding Microsoft's plans to combat Android, going so far as to bring antitrust allegations involving Nokia, Microsoft's newest mobile phone partner, into it.

"On information and belief, as part of Microsoft’s recently announced agreement  with Nokia to replace Nokia’s Symbian operating system with Microsoft’s own mobile device operating system, Microsoft and Nokia discussed and apparently agreed upon a strategy for coordinated offensive use of their patents," says the B&N filing. "This type of horizontal agreement between holders of significant patent portfolios is per se illegal under the antitrust laws, threatens competition for mobile device operating systems and is further evidence of Microsoft’s efforts to dominate and control Android and other open source operating systems."

"Microsoft did not invent, research, develop, or make available to the public mobile devices employing the Android Operating System and other open source operating systems, but nevertheless seeks to dominate something it did not invent," B&N's complaint says.

As I've blogged before, to me, there's little doubt that Microsoft is using its patents as a way to try to fight Android's growing dominance in the mobile space. Microsoft sued Motorola last fall over alleged infringement of Motorola’s Android smartphones on Microsoft’s patents. And HTC paid an undisclosed amount to Microsoft in 2010 to head off potential Android-based patent problems.

I found some of the details about how Microsoft approached B&N interesting.  According to the complaint, upon telling B&N officials that the Nook infringed six patents that Microsoft claimed to own, Microsoft officials said they'd share details only if B&N officials signed a non-disclosure agreement. B&N refused to sign an NDA, claiming the patents were public and the infringement allegations were on a public product. As a result, according to B&N, Microsoft officials would only discuss the alleged infringements "on a high-level basis."

"Microsoft nevertheless maintained that it possessed patents sufficient to dominate and entirely preclude the use of the Android Operating System by the Nook," according to the complaint. "Microsoft demanded an exorbitant royalty (on a per device basis) for a license to its patent portfolio for the Nook device and at the end of the meeting Microsoft stated that it would demand an even higher per device royalty for any device that acted 'more like a computer' as opposed to an eReader."

B&N's complaint says that Microsoft was seeking a more than double per device royalty for the color version of the Nook -- an amount B&N officials believed be "higher than what Microsoft charges for a license to its entire operating system designed for mobile devices, Windows Phone 7."

B&N is denying it has infringed the patents highlighted by Microsoft, and is calling into question whether some of the patents in question should be considered operating-system-related at all.

The full B&N response is worth a read for those interested in the never-ending Microsoft vs. Linux wars.

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