PTO To Look At 9 Patents In Microsoft, Avistar Dispute

Law360, New York (June 2, 2008, 12:00 AM EDT) -- The U.S. Patent and Trademark Office has responded to Microsoft Corp.'s challenge of Avistar Communications Corp.'s entire U.S. patent portfolio by deciding to re-examine nine Avistar patents but rejecting the software giant's request to re-examine 14 others.

Microsoft asked for 29 patents to be scrutinized, and the USPTO has yet to render a decision on six of them, Avistar spokesman Ken Lempit said Monday. Lempit said the USPTO's decision meant that the company had the core of its intellectual property portfolio back to use to generate...
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