Litzenberger; Paul D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Litzenberger; Paul D..The latest application filed is for "system and method for implementing user-to-user information transfer services".
- Litzenberger; Paul D. - Sachse TX
- Litzenberger; Paul D. - Wylie TX
| Patent | Date |
|---|---|
| System and method for implementing user-to-user information transfer services Grant 6,807,170 - Dendi , et al. October 19, 2 | 2004-10-19 |
| Echo canceller system Grant 6,728,223 - Litzenberger , et al. April 27, 2 | 2004-04-27 |
| Call record broadcast via an interface in a telecommunications network Grant 5,835,497 - Litzenberger , et al. November 10, 1 | 1998-11-10 |
| High speed interface in a telecommunications network Grant 5,617,422 - Litzenberger , et al. April 1, 1 | 1997-04-01 |
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