Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D344316 | Roller skate | — | 1994-02-15 |
| D337365 | Roller skate | — | 1993-07-13 |
| 5224718 | Foot transport device | — | 1993-07-06 |
| D333171 | Roller skate | — | 1993-02-09 |
| 4828551 | Patient controlled analgesia apparatus | Donald Van Nimwegen | 1989-05-09 |
| 4314316 | Illuminating whistle | Leona Gertler, Dietmar Nagel, Melvin R. Kennedy | 1982-02-02 |
| 4285151 | Personal hygiene apparatus | — | 1981-08-25 |