| 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 |