Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11407516 | Closed or semi-closed loop onboard ceramic oxygen generation system | Steven C. Peake, Courtney J. Monzyk, Timothy Raleigh, Chris Fellner, Gary Wu | 2022-08-09 |
| 10274973 | Semi-closed circuit underwater breathing apparatus ratio regulator | Chris Fellner, Misty Dowdal | 2019-04-30 |
| 7694674 | Oxygen generator with storage and conservation modes | Victor P. Crome, Russell F. Hart, Scott R. Sehlin, Tuan Q. Cao, Courtney J. Monzyk +3 more | 2010-04-13 |
| 6712877 | Oxygen concentrator system | Tuan Q. Cao, Lyle Berkenbosch, Craig Schledewitz | 2004-03-30 |
| 6712876 | Oxygen concentrator system with altitude compensation | Tuan Q. Cao | 2004-03-30 |
| 6681807 | Asymmetric bidirectional flow device | — | 2004-01-27 |
| 6660065 | Pressure swing adsorption dryer for pneumatically driven pressure intensifiers | Timothy C. Phillis | 2003-12-09 |
| 6047743 | Integrated high pressure fill port and flow controller for cylinder recharger | — | 2000-04-11 |
| D412577 | Oxygen concentrator used in home health care | Sammy Mickelson, Dale L. Selhost, Kevin Gene McCulloh, Bradley D. Kreiner, Dean A. Cantrill +1 more | 1999-08-03 |
| 5908053 | Integrated high pressure fill port and flow controller for cylinder recharger | — | 1999-06-01 |
| 5836358 | Fill port covers | Dale L. Selhost | 1998-11-17 |