Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7234680 | Combination valve and regulator with vented seat for use with pressurized gas cylinders, particularly oxygen cylinders | Wendell Hull | 2007-06-26 |
| 7114699 | Combination valve and regulation for use with pressurized gas cylinders, particularly oxygen cylinders | Wendell Hull | 2006-10-03 |
| 6607007 | Cylinder valve and bayonet check-filter with excess-flow protection feature | Wendell Hull | 2003-08-19 |