Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D365404 | Soil erosion prevention block | — | 1995-12-19 |
| D351914 | Soil erosion prevention block | — | 1994-10-25 |
| 4486120 | Spreader bar for soil erosion prevention mats | — | 1984-12-04 |
| 4417842 | Soil erosion prevention block insert and apparatus for positioning | — | 1983-11-29 |
| D259214 | Soil erosion prevention block | — | 1981-05-12 |
| 4227829 | Soil erosion prevention blocks | — | 1980-10-14 |