Issued Patents All Time
Showing 101–105 of 105 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6281988 | Apparatus and method for supporting analog fax calls in a tandem configuration | — | 2001-08-28 |
| 6185195 | Methods for preventing and detecting message collisions in a half-duplex communication system | — | 2001-02-06 |
| 6147978 | Method and apparatus for preventing message collisions in a half-duplex communication system | Johnny K. John | 2000-11-14 |
| 6115142 | Method and apparatus for supporting analog fax calls in a tandem configuration | — | 2000-09-05 |
| 6038037 | Digital network interface for analog fax equipment | Johnny K. John | 2000-03-14 |