Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8239829 | User co-routine interface for customizing SIP and SDP protocols | James W. Delmege | 2012-08-07 |
| 7920831 | PTT/PTS signaling in an internet protocol network | — | 2011-04-05 |
| 5257260 | Expanding switching capability of a time division communication system by multiplexing groups of circuits into successions | Jerome S. Caplan, Klaus Gueldenpfennig | 1993-10-26 |
| 5239542 | Time division multiplex switching system for interconnecting telephone circuits which operate in accordance with different signalling systems and call formats | Jerome S. Caplan, Klaus Gueldenpfennig | 1993-08-24 |
| 4521879 | Digital private branch exchange | Klaus Gueldenpfennig, Stanley L. Russell, William A. Oswald, Karam V. Narula | 1985-06-04 |
| D275279 | High density component mounting back panel for electronic equipment | Bruce G. Littlefield, Jerome S. Caplan | 1984-08-28 |
| 4314110 | System for the testing of telephone switching systems | Charles A. Barbe | 1982-02-02 |
| 4229816 | Timing signal generation and distribution system for TDM telecommunications systems | Jerome S. Caplan, Bruce G. Littlefield | 1980-10-21 |
| 4228536 | Time division digital communication system | Klaus Gueldenpfennig | 1980-10-14 |