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C2's VoIP patent
C2's VoIP patent, granted by the USPTO as US6,243,373 in 2001.
Related pages on ESP Wiki
- Example software patents
- Quality of software patents is particularly bad
- Litigation and specific patents
- VoloMedia's podcasting patent
- Freedom of expression
External links
- Patent Office Agrees With EFF’s Arguments on C2 VoIP Patent, 23 Sep 2010, EFF
- 'Preliminary' finding invalidates VoIP patent, says EFF, 23 Sep 2010, NetworkWorld
- Preliminary Finding Invalidates VoIP Patent, 23 Sep 2010, Slashdot
- Patent office to review VoIP patent, 6 Feb 2010, NetworkWorld
- USPTO To Review Controversial VoIP Patent, 6 Feb 2010, Slashdot
