en.swpat.org is a wiki. You can edit it. It may contain statements End Software Patents does not endorse.
Invalidate patents based on subject matter
Invalidating patents based on subject matter is a way to reduce the scope for enforcing or applying for software patents.
 Related pages on en.swpat.org
- In re Bilski - which produced a new test which has been used to invalidate some software patents
- Interoperability exceptions - another method for partial success
This wiki is part of the End Software Patents (ESP) campaign (donate). For more information, see: