Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6769790 | Theatrical lighting system with moving lights | Hermann Fruhm | 2004-08-03 |
| 5951027 | Shock absorbent in-line roller skate with wheel brakes-lock | Gerald O. S. Oyen | 1999-09-14 |
| 5575489 | Shock absorbent in-line roller skate | Gerald O. S. Oyen | 1996-11-19 |
| 5330208 | Shock absorbent in-line roller skate | Gerald O. S. Oyen | 1994-07-19 |