Upp; Steven
Patent Applications and Registrations
Patent applications and USPTO patent grants for Upp; Steven.The latest application filed is for "method and apparatus for maintaining sip contact addresses using event subscription".
- Upp; Steven - Bartlett IL
| Patent | Date |
|---|---|
| Call center access in a push to talk based call system Grant 6,980,821 - Balasuriya , et al. December 27, 2 | 2005-12-27 |
| Method and apparatus for maintaining sip contact addresses using event subscription App 20040121765 - Idnani, Ajaykumar R. ; et al. | 2004-06-24 |
| Call center access in a dispatch based call system App 20030232623 - Balasuriya, Senaka ; et al. | 2003-12-18 |
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