Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5253674 | Coolant corrosiveness indicator | Charles S. Argyle, Brian E. Cheadle | 1993-10-19 |
| 5181536 | Coolant corrosiveness indicator | Charles S. Argyle, Brian E. Cheadle | 1993-01-26 |
| 5127433 | Coolant corrosiveness indicator | Charles S. Argyle, Brian E. Cheadle | 1992-07-07 |