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Line 27: ==Patent licensing== Leading open-source figures and companies<ref>[{{Cite web\|url=http://www.networkworld.com/community/node/66807]\|title = Red Hat urges patent office to deny most software patents\|date = 29 September 2010}}</ref> have complained that software patents are overly broad and the [[USPTO]] should reject most of them. [[Bill Gates]] has said "If people had understood how patents would be granted when most of today’s ideas were invented, and had taken out patents, the industry would be at a complete standstill today".<ref>[{{Cite web\|url=http://news.swpat.org/2010/06/late-comers-guide-what-is-bilski-anyway/]\|title=Late-comers guide: What is Bilski anyway? – End Software Patents}}</ref> ==Problems for free software== Line 125: \|title=Microsoft Patent Pledge for Open Source Developers \|author=Microsoft \|website=[[Microsoft]] \|access-date=2009-12-07 }}</ref> which CEO [[Steve Ballmer]] called "an important step and significant change in how we share information about our products and technologies."<ref>{{cite web Line 130 ⟶ 131: \|title=Microsoft Makes Strategic Changes in Technology and Business Practices to Expand Interoperability \|author=Microsoft \|website=[[Microsoft]] \|access-date=2009-12-07 }}</ref> This pledge has been accepted with some skepticism.<ref>{{cite web Line 157 ⟶ 159: }}</ref> The Linux kernel developers subsequently worked around it.<ref>See the kernel option VFAT_FS_DUALNAMES</ref> In 2011 a company called Bedrock Technologies LLC won a judgment of $5 million against Google for use of the Linux kernel, which the court found to violate US patent 5,893,120 (which was filed in 1997 and issued in 1999, and covers techniques for [[software caches]] likely used in every modern operating system). Bedrock went on to sue Yahoo and lost; Yahoo's defense amounted to the use of a different version of Linux which did not execute the particular code that Bedrock had pointed out as infringing,<ref>http://www.itworld.com/article/2742293/open-source-tools/yahoo--wins-verdict-in-bedrock-patent-trial.html</ref> but the Yahoo case did not invalidate Bedrock's patent.<ref>{{Cite web\|url=http://www.h-online.com/open/news/item/Yahoo-wins-Linux-patent-trial-that-Google-lost-1243687.html\|title = Yahoo wins Linux patent trial that Google lost - the H Open: News and Features}}</ref> Details of exactly which code Bedrock said infringed the patent and how Yahoo managed to avoid executing that code are not publicly available<!-- (as far as I can see; if anybody knows, please add a reference) -->. In January 2008, [[Trend Micro]] accused [[Barracuda Networks]] of patent infringement for distribution of the [[ClamAV]] anti-virus software.<ref>{{cite web Line 173 ⟶ 175: \|url=http://www.microsoft.com/interop/msnovellcollab/patent_agreement.mspx \|title=The MS-Novell patent deal \|website=[[Microsoft]] }}</ref> This led to much criticism of Novell by the [[free software community]].<ref>{{cite web \|url = http://techp.org/petition/show/1

Software patents and free software: Difference between revisions