Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054059 | Telephone dialing system for specialized services | Joseph L. Stern | 1991-10-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054059 | Telephone dialing system for specialized services | Joseph L. Stern | 1991-10-01 |