Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819745 | Method and apparatus of testing a POTS circuit and DSL circuit through a splitter | Michael Hollenbeck, Joel Futterman | 2004-11-16 |
| 4523308 | Telephone concentrator switch arrangement | John W. Bull, Leon Croft, David B. DeVaney, Russell R. Davis, David L. Hinshaw +6 more | 1985-06-11 |