Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4294409 | Shower head and valve assembly for camping shower | — | 1981-10-13 |
| 4222341 | Riser tensioning wave and tide compensating system for a floating platform | Cornelis J. Heeres | 1980-09-16 |