Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4299709 | Tracer fluids for enhanced oil recovery | Walter H. Carter | 1981-11-10 |
| 4231426 | Method of using tracer fluids for enhanced oil recovery | Walter H. Carter | 1980-11-04 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4299709 | Tracer fluids for enhanced oil recovery | Walter H. Carter | 1981-11-10 |
| 4231426 | Method of using tracer fluids for enhanced oil recovery | Walter H. Carter | 1980-11-04 |