Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9795759 | Low flow controller | Manuel Barraza | 2017-10-24 |
| 7849854 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Warner V. Graves, Jr., Malcolm Williams, Michael Holmes | 2010-12-14 |
| 7222623 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Warner V. Graves, Jr., Malcolm Williams, Michael Holmes | 2007-05-29 |
| 6877511 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Warner V. Graves, Jr., Malcolm Williams, Michael Holmes | 2005-04-12 |
| 6526970 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Warner V. Graves, Jr., Malcolm Williams, Michael Holmes | 2003-03-04 |
| 5881722 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Warner V. Graves, Jr., Malcolm Williams, Michael Holmes | 1999-03-16 |
| 5868133 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Warner V. Graves, Jr., Malcolm Williams, Michael Holmes | 1999-02-09 |
| 5694926 | Portable drag compressor powered mechanical ventilator | Douglas F. DeVries, Warner V. Graves, Jr., Malcolm Williams, Michael Holmes | 1997-12-09 |
| 5159924 | Method and apparatus for selectively mixing gases | Teunis Van Den Berg | 1992-11-03 |