Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8226381 | Check valve having integrally formed seat and seal body | Thomas Headley | 2012-07-24 |
| 8167586 | Valve assembly with low resistance pilot shifting | — | 2012-05-01 |
| 7631725 | Exhaust system | Thomas Headley | 2009-12-15 |
| 7600532 | Check valve having integrally formed seat and seal body | Thomas Headley | 2009-10-13 |
| 7191799 | Annular port construction for valve applications | Thomas Headley | 2007-03-20 |
| 7063517 | Valve apparatus and pneumatically driven diaphragm pump incorporating same | Thomas Headley | 2006-06-20 |
| 6976506 | Annular port construction for valve applications | Thomas Headley | 2005-12-20 |
| 6901960 | Double diaphragm pump including spool valve air motor | C. Oakley Roberts | 2005-06-07 |
| 6883417 | Connecting configuration for a diaphragm in a diaphragm pump | Thomas Headley | 2005-04-26 |
| 6644941 | Apparatus and method for reducing ice formation in gas-driven motors | Stephen D. Able, G. Keith Hancock | 2003-11-11 |