Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE35050 | Personal computer-as an interface between a telephone station set and a business communication system | Norman W. Petty | 1995-10-03 |
| 4748656 | Personal computer--as an interface between a telephone station set and a business communication system | Norman W. Petty | 1988-05-31 |