Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5430998 | Underwater weed cutting machine | — | 1995-07-11 |
| 4845867 | Triple-purpose attachment | — | 1989-07-11 |
| 4638680 | Bucket linkage | — | 1987-01-27 |
| 4459768 | Bucket design | — | 1984-07-17 |
| 4392314 | Boom and dipper stick construction | Richard C. Van Ooyen | 1983-07-12 |
| 4271614 | Floating soil fracture tool | — | 1981-06-09 |