Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4383908 | Probe system for determining acidity of fluid flowing through pressurized pipe line | Thomas C. Phelps | 1983-05-17 |
| 4202749 | Probe system for determining acidity of fluid flowing through pressurized pipe line | Thomas C. Phelps | 1980-05-13 |