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Blanket patent licences and promises
- See also: Non-aggression promise to employees. (These articles may get merged.)
 
A blanket licence is when a company gives a certain group of users/developers protection from all their patents. A fairly good example is Red Hat's promise not to use patents against free software users and developers. slashdot.org Other companies have made narrower promises that only grant protection from a small portion of their patent portfolio. Some promises are so narrow, they're probably useless and were probably just a publicity stunt.
Contents
What's good and bad
- A "licence" is better than a "promise" or a "pledge". A "licence" has a solid definition and has been tested repeatedly in courts.
 - It's good when a licence (or promise) covers a company's entire patent portfolio, like Red Hat's.
 - It's bad when it only covers a selection, like Google's March 2013 pledge about 10 patents (from a company with 18,000 patents[1]).
 
Examples of company patent promises
Note: these are not examples of good promises, it's just a list which might be informative or which might help explain the issues involved.
- 2005-01-10: IBM's 500-patent promise (news coverage: CNet)
- Debate arose in 2010 about whether this promise was broken in the IBM v. TurboHercules in 2010 case
 
 - Red Hat's (see also: Red Hat)
 - Blackboard's (see also: Blackboard inc.)
 - Google's (see also: Google)
- Google also made a promise regarding WebM (see: Patent clauses in software licences#WebM licence)
 - and in March 2013, they made their Open Patent Non-Assertion (OPN) Pledge, covering 10 patents[2]
 
 - Sun's OpenDocument statement (see also: Sun Microsystems)
 - Microsoft Open Specification Promise
 - Nokia's - only the Linux kernel, only "official versions" (whatever they are), and Nokia reserves the right to cancel the promise for any future versions. (see also: Nokia)
 - EA's Patent Pledge for Increasing Accessibility
 - Tesla's Patent Pledge
 
Related pages on ESP Wiki
- Patent clauses in software licences
 - free software - not strictly related, but many of these promises are limited to free software
 - Patent non-aggression pacts
 - Defensive patent pools
 - Defensive Patent License
 - Equitable defences: estoppel and laches - a "promise" can be legally weak, leaving you with no more than an equity defence
 - Non-aggression promise to employees
 
External links
- Nokia's patent announcement next to nothing, May 30th 2005 - discussion of IBM, Sun, and Nokia, by Richard Stallman
 - Linux Foundation's "Patent Commons" collection of promises
 - Comparison of software licence clauses and promises, (audio) by Bradley Kuhn
 - Covenant not to sue [in German law], 6 Oct 2010, EPLAW patent blog
 
References
- ↑ They had 1,200, then they bought Motorola which had a portfolio of 17,000
 - ↑ http://www.google.com/patents/opnpledge/