Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11787715 | Apparatus and method for recycling blackwater and greywater at oil and gas well sites | Hal D. Hingson | 2023-10-17 |
| 11225425 | Apparatus and method for recycling blackwater and greywater at oil and gas well sites | Hal D. Hingson | 2022-01-18 |
| 10669177 | Apparatus and method for recycling blackwater and greywater at oil and gas well sites | Hal D. Hingson | 2020-06-02 |