Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5091247 | Woven geotextile grid | John Hawkins, Russell P. Harp, David M. Wilkinson | 1992-02-25 |
| 4960349 | Woven geotextile grid | John Hawkins, Russell P. Harp, David M. Wilkinson | 1990-10-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5091247 | Woven geotextile grid | John Hawkins, Russell P. Harp, David M. Wilkinson | 1992-02-25 |
| 4960349 | Woven geotextile grid | John Hawkins, Russell P. Harp, David M. Wilkinson | 1990-10-02 |