Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4641301 | Telecommunication switching system and priority arrangement used therein | Francoise C. G. Van Simaeys, Anna M. C. Leurs, Daniel C. Upp, John M. Cotton | 1987-02-03 |
| 4439826 | Diagnostic system for a distributed control switching network | Daniel C. Upp | 1984-03-27 |
| 4201889 | Distributed control digital switching system | John M. Cotton, Kenneth J. Hamer-Hodges, Jeffrey N. Denenberg | 1980-05-06 |
| 4201890 | Multiport digital switching element | Jeffrey N. Denenberg, Murray Rubinstein, Daniel C. Upp | 1980-05-06 |
| 4201891 | Expandable digital switching network | John M. Cotton, Jeffrey N. Denenberg | 1980-05-06 |
| 4192973 | Processor overload arrangement in time division multiplex exchanges | Roger M. Williams | 1980-03-11 |