Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5203511 | Method for fine grinding | Andrew P. Ondush, Richard D. Ritter | 1993-04-20 |
| 5195695 | Apparatus for fine grinding | Andrew P. Ondush, Richard D. Ritter | 1993-03-23 |
| 4646965 | Thermostatic steam trap | Allan E. MacNicol | 1987-03-03 |
| 4527733 | Check valve | — | 1985-07-09 |
| 4191327 | Automatic thermostatic control for a steam trap radiator | Thomas E. Murray | 1980-03-04 |