Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9974918 | Portable oxygen delivery device | Peter S. Armstrong, Ronald F. Richard, Ningda Andy Dai | 2018-05-22 |
| 9974919 | Portable oxygen delivery device | Ronald F. Richard | 2018-05-22 |
| 9974920 | Portable oxygen delivery device | Robert Schneider, Jason Hugenroth | 2018-05-22 |