Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11369768 | Ultra rapid cycle portable oxygen concentrator | Stephen Douglas Galbraith, Kenneth J. McGowan, Evonne A. Baldauff, David K. Walker | 2022-06-28 |
| 11278697 | Ultra rapid cycle portable oxygen concentrator | Stephen Douglas Galbraith, Kenneth J. McGowan, Evonne A. Baldauff, David K. Walker | 2022-03-22 |
| 9993765 | Portable oxygen enrichment device and method of use | Stephen Douglas Galbraith, David K. Walker, Kenneth J. McGowan, Judith C. Galbraith | 2018-06-12 |
| 9492781 | Portable oxygen enrichment device and method of use | Stephen Douglas Galbraith, David K. Walker, Kenneth J. McGowan, Judith C. Galbraith | 2016-11-15 |
| 9199055 | Ultra rapid cycle portable oxygen concentrator | Stephen Douglas Galbraith, David K. Walker | 2015-12-01 |
| 8888902 | Portable oxygen enrichment device and method of use | Stephen Douglas Galbraith, David K. Walker, Kenneth J. McGowan, Judith C. Galbraith | 2014-11-18 |