Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821259 | Control information communication arrangement for a distributed control switching system | Dennis L. DeBruler, Thomas L. Hiller, James M. Johnson, Jr., Douglas A. Kimber, Christopher G. McHarg +2 more | 1989-04-11 |
| 4530092 | Distributed switching system having multiple time slot interchanger nodes | — | 1985-07-16 |
| 4472798 | Telecommunication path substitution arrangement | — | 1984-09-18 |
| 4296492 | Continuity verification arrangement | — | 1981-10-20 |
| 4280217 | Time division switching system control arrangement | William J. Klinger | 1981-07-21 |