Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4596731 | Grass protecting walkway grid | Doug O. Vilven, H. Keith Cudmore | 1986-06-24 |
| 4578502 | Polyethylene terephthalate saponification process | — | 1986-03-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4596731 | Grass protecting walkway grid | Doug O. Vilven, H. Keith Cudmore | 1986-06-24 |
| 4578502 | Polyethylene terephthalate saponification process | — | 1986-03-25 |