Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12398721 | Gas operated infinite step valve for a reciprocating compressor | — | 2025-08-26 |
| 11732707 | Inlet valve system | — | 2023-08-22 |
| 11391279 | Compressor valve assembly with removably affixed guide in a reciprocating compressor | Edward Frazzini | 2022-07-19 |
| 11384753 | Gas operated unloader valve | — | 2022-07-12 |
| 11015591 | Gas operated infinite step valve | — | 2021-05-25 |
| 10781806 | Compressor valve seat reconditioning limit indicator | Glenn D. Hatch, Jeffrey George Pennypacker | 2020-09-22 |
| 9309978 | Low head to stem ratio poppet valve | Glenn D. Hatch | 2016-04-12 |
| 8070461 | Control valve assembly for a compressor unloader | — | 2011-12-06 |