Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11913556 | Anti-spin outer diameter guided compressor valve | — | 2024-02-27 |
| 10781806 | Compressor valve seat reconditioning limit indicator | Joel T. Sanford, Jeffrey George Pennypacker | 2020-09-22 |
| 10662935 | Poppet valve assembly | — | 2020-05-26 |
| 9309978 | Low head to stem ratio poppet valve | Joel T. Sanford | 2016-04-12 |