Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7975693 | Adjustable gas delivery mask having a flexible gasket | Edward Geiselhart, Chris Houghton, Erik Holverson, Benjamin Sun | 2011-07-12 |
| 7900630 | Gas delivery mask with flexible bellows | Edward Geiselhart, Chris Houghton, Erik Holverson, Steve Trebotich | 2011-03-08 |