Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5459606 | In-service upgrade for a telecommunication system | Francis Butler, John C. Cox, Chi Hsuen Lin, Nattu V. Srinivasan | 1995-10-17 |
| 4873663 | Control memory using recirculating shift registers for a TDM switching apparatus | Dominick Scordo | 1989-10-10 |
| 4608693 | Fault detection arrangement for a digital conferencing system | John R. Colton | 1986-08-26 |
| 4575845 | Time division multiplex conferencer | John R. Colton | 1986-03-11 |
| 4499577 | Linear time division multiplexed conferencer for data transfer applications | John R. Colton | 1985-02-12 |
| 4481624 | Linear time division multiplexed conferencer | John R. Colton, Michael S. Lane, Thomas P. Sosnowski | 1984-11-06 |