Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054778 | Lighted ball | — | 1991-10-08 |
| 4915666 | Lighted hoop | — | 1990-04-10 |
| 4776585 | Electrically lighted jump rope | Gerald Grijak | 1988-10-11 |
| 4693018 | Extendible boot | Gerald Grijak | 1987-09-15 |
| 4586271 | Extendible boot | Gerald Grijak | 1986-05-06 |