Editing List of software patents (section)

===Data compression in general===
* {{Cite patent|country=US|number=5016009}} {{En dash}} ''(Main article: [[Stac Electronics#Microsoft lawsuit|Stac Electronics]])''
* {{Cite patent|country=US|number=4701745}} {{En dash}} also granted as {{Cite patent|country=GB|number=2172127}}<ref>This link goes to the patent application. Electronic copies of granted GB patents are not freely available</ref> - now expired
: [[Stac Electronics]] sued [[Microsoft]] for patent infringement when Microsoft introduced the [[DoubleSpace]] data compression scheme into [[MS-DOS]].<ref>{{Cite web
 |url=http://www.vaxxine.com/lawyers/articles/stac.html 
 |title=Complaint for patent infringement and Demand for jury trial by Stac Electronics v Microsoft Corporation 
 |accessdate=2007-04-21 
 |url-status=dead 
 |archiveurl=https://web.archive.org/web/20070509205650/http://www.vaxxine.com/lawyers/articles/stac.html 
 |archivedate=2007-05-09 
}}</ref> Stac was awarded $120 million by a jury in 1994 and Microsoft was ordered to recall versions of MS-DOS with the infringing technology.<ref>{{Cite web
 |url         = http://www.msversus.org/archive/stac.html
 |title       = Microsoft Loses Patent Suit
 |publisher   = [[Associated Press]]
 |date        = February 23, 1994
 |accessdate  = 2007-04-21
 |url-status     = dead
 |archiveurl  = https://web.archive.org/web/20070518050821/http://www.msversus.org/archive/stac.html
 |archivedate = May 18, 2007
}}</ref>