Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6729934 | Interactive character system | Robert W. Driscoll, Peter Kristoffy | 2004-05-04 |
| 6695670 | Electronic yo-yo games | Robert W. Driscoll, Peter Kristoffy | 2004-02-24 |
| 6634922 | Electronic RPM yo-yo | Robert W. Driscoll, Peter Kristoffy | 2003-10-21 |
| 6496235 | LCD slider | Robert W. Driscoll, Peter Kristoffy | 2002-12-17 |
| D255845 | Pistol grip brush | — | 1980-07-15 |