Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6139221 | Constant hydraulic head moat and method for controlling regional ground water flow | Mark D. Ankeny | 2000-10-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6139221 | Constant hydraulic head moat and method for controlling regional ground water flow | Mark D. Ankeny | 2000-10-31 |