Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4552651 | Control of froth cell performance through the use of differential bubbler tubes | Thomas D. Sandbrook | 1985-11-12 |
| 4283954 | High temperature pressure gauge | J. Paul Echtler | 1981-08-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4552651 | Control of froth cell performance through the use of differential bubbler tubes | Thomas D. Sandbrook | 1985-11-12 |
| 4283954 | High temperature pressure gauge | J. Paul Echtler | 1981-08-18 |