Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7178526 | Quick-donning full face oxygen mask with inflatable harness and soft foldable lens | Thomas K. McDonald, Gary R. Hannah, Gregory R. Jones | 2007-02-20 |
| 6672307 | Quick-donining full face oxygen mask with inflatable harness and soft foldable lens | Thomas K. McDonald, Gary R. Hannah, Gregory R. Jones | 2004-01-06 |
| 6443155 | Quick-donning full face oxygen mask with inflatable harness and soft foldable lens | Thomas K. McDonald, Gary R. Hannah, Gregory R. Jones | 2002-09-03 |
| 6070580 | Quick-donning full face oxygen mask with inflatable harness and soft foldable lens | Thomas K. McDonald, Gary R. Hannah, Gregory R. Jones | 2000-06-06 |
| 5957132 | Quick-donning full face oxygen mask with inflatable harness and soft foldable lens | Thomas K. McDonald, Gary R. Hannah, Gregory R. Jones | 1999-09-28 |
| 5829431 | Microphone attenuation device for use in oxygen breathing masks | Gary R. Hannah | 1998-11-03 |
| 5664566 | Quick-donning full face oxygen mask with inflatable harness and soft foldable lens | Thomas K. McDonald, Gary R. Hannah, Gregory R. Jones | 1997-09-09 |
| 5605145 | Microphone attenuation device for use in oxygen breathing masks | Gary R. Hannah | 1997-02-25 |