--- title: "Patent Litigation Settled: Microsoft Pays $200M to VirnetX" description: Patent information behind VirnetX lawsuit settlement payment from Microsoft for $200 million. image: https://info.ipvisioninc.com/hs-fs/file-2839895990-png/images/2_virnetx_patents2.png --- [![logo](https://info.ipvisioninc.com/hs-fs/hubfs/ipvision-site/images/logo.png?width=200&name=logo.png "logo")](http://www.ipvisioninc.com/) - [Contact Us](http://www.ipvisioninc.com/about-us/contact-us/) - [Blog](https://info.ipvisioninc.com/IPVisions) ![IP vision blog banner](https://info.ipvisioninc.com/hs-fs/hubfs/ipvision-site/images/banner_blog-1.jpg?width=1400&name=banner_blog-1.jpg "IP vision blog banner") ## IPVision Blog Written by [Joseph Hadzima, Esq., Sr. Lecturer, MIT Sloan School of Management, President and Co-Founder of IPVision](https://info.ipvisioninc.com/blog/author/joseph-hadzima-esq-sr-lecturer-mit-sloan-school-of-management-president-and-co-founder-of-ipvision) # Patent Litigation Settled: Microsoft Pays $200M to VirnetX - [Tweet](https://twitter.com/share) Ellen Rosen of [Bloomberg Businessweek](http://www.businessweek.com/news/2010-05-18/microsoft-hyundai-cable-tv-intellectual-property-update1-.html) reported today that Microsoft paid $200 million to settle patent litigation brought by [VirnetX Holdings Corporation](http://www.virnetx.com/index.php) in February 2007.   VirnetX alleged that Microsoft infringed two VirnetX U.S. patents that covered the Virtual Private Network (VPN) technology contained in Microsoft Windows and Officer Server products.  ### IPVision Patent Map [![IPVision Patent Map of 2 VIrnetX Patents](https://info.ipvisioninc.com/hs-fs/file-2839895990-png/images/2_virnetx_patents2.png " align=")](http://see-the-forest.com/DocumentRecall.act?docId=1nsdji.g9d0utqab&sidebar=none) The two U.S. patents asserted by VirnetX were **U.S. 6,502,135 "*Agile network protocol for secure communications with assured system availability*"** which has been cited by 85 other U.S. patents and **U.S. 6,839,759 "*Method for establishing secure communication link between computers of virtual private network without user entering any cryptographic information*"** which has been cited by 14 other U.S. patents.  These patents are shown on this IPVision Patent Landscape Map (the top "fan" is the '759 patent).  ***Note: Click on Patent Map Image to View an Interactive [Patent Landscape Map](https://info.ipvisioninc.com/support/reading-maps/multi-patent-landscape-maps/)***. Among the patents citing the VirnetX patents are 12 Microsoft, 11 IBM and 9 Cisco patents. At the time the suit was filed VirnetX's stock price was under 50 cents per share.  On May 17 VirnetX (Symbol: VHC) closed at $6.11 per share with a market capitalization of $267 million.  VirnetX stock was a pure play on the Microsoft litigation.  In the year ended December 31, 2009 VirnetX had revenues of only $26,000 and a net loss of over $13 million.  This is VirnetX's stock chart since the filing of the suit against Microsoft: ### VirnetX Holdings Corporation (VHC) Stock Chart [![VirnetX Stock Chart](https://info.ipvisioninc.com/hs-fs/file-2839896000-png/images/virnetx_stock_chart-resized-600.png)](http://www.nasdaq.com/aspx/chartingbasics.aspx?intraday=off&timeframe=5y&charttype=ohlc&splits=off&earnings=off&movingaverage=None&lowerstudy=volume&comparison=off&index=&drilldown=off&symbol=VHC&selected=VHC) Author:  Joseph G. Hadzima, Jr. | Senior Lecturer, MIT Sloan School of Management | President of IPVision, Inc.       Categories: [Patent Landscape](https://info.ipvisioninc.com/blog/topic/patent-landscape), [Patent Strategy](https://info.ipvisioninc.com/blog/topic/patent-strategy), [Patent Litigation](https://info.ipvisioninc.com/blog/topic/patent-litigation) - [Tweet](https://twitter.com/share) ### Follow IPVision - [**](https://www.linkedin.com/company/381481?trk=tyah&trkInfo=clickedVertical%3Acompany%2CclickedEntityId%3A381481%2Cidx%3A2-4-5%2CtarId%3A1457382100602%2Ctas%3Aipvision) - [**](https://twitter.com/ipvisioninc) ### Subscribe via Email ![landscape-map.png](https://info.ipvisioninc.com/hs-fs/hubfs/ipvision-site/images/landscape-map.png?width=103&name=landscape-map.png "landscape-map.png") ### Create a patent landscape map Patent citation analysis that makes it simple to explore complex relationships with a visual guide [Learn More](https://info.ipvisioninc.com/view-patent-landscape-map) ### Categories - 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