Law360, New York (June 23, 2010, 2:36 PM ET) -- The U.S. Patent and Trademark Office has affirmed the validity of two VirnetX Holding Corp. network security patents that Microsoft Corp. licensed for $200 million in May to resolve an infringement suit by VirnetX.
VirnetX said in a statement Tuesday that the USPTO ruled June 16 that all claims of the two patents are valid. The company said Microsoft had requested a re-examination of the patents in January, before the case went to trial in the U.S. District Court for the Eastern District of Texas....
USPTO Gives OK To VirnetX Patents In Microsoft Case
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