Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7849854 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Michael J. Cegielski, Malcolm Williams, Michael Holmes | 2010-12-14 |
| 7222623 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Michael J. Cegielski, Malcolm Williams, Michael Holmes | 2007-05-29 |
| 6877511 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Michael J. Cegielski, Malcolm Williams, Michael Holmes | 2005-04-12 |
| 6526970 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Michael J. Cegielski, Malcolm Williams, Michael Holmes | 2003-03-04 |
| 5881722 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Michael J. Cegielski, Malcolm Williams, Michael Holmes | 1999-03-16 |
| 5868133 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Michael J. Cegielski, Malcolm Williams, Michael Holmes | 1999-02-09 |
| 5694926 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Michael J. Cegielski, Malcolm Williams, Michael Holmes | 1997-12-09 |