Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5754549 | Inexpensive two-way communications switch | Steven M. DeFoster | 1998-05-19 |
| 5535035 | Optical fiber ring communications system and communications method | Steven M. DeFoster, Raymond J. Thatcher | 1996-07-09 |