Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5590680 | External valve operating means | Zbigniew Gugala | 1997-01-07 |
| 5577709 | Stem seal configuration for ball valves | Zbigniew Gugala, Lawrence J. Loman | 1996-11-26 |
| 4831833 | Frost detection system for refrigeration apparatus | Patricia Duenes, Richard L. Kenyon, Eugene H. Schild, Arthur P. Strong | 1989-05-23 |
| 4284100 | Pipe mount manifold assembly | Joseph S. Soos | 1981-08-18 |