Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11369768 | Ultra rapid cycle portable oxygen concentrator | Stephen Douglas Galbraith, Evonne A. Baldauff, Elise N. DePetris, David K. Walker | 2022-06-28 |
| 11278697 | Ultra rapid cycle portable oxygen concentrator | Stephen Douglas Galbraith, Evonne A. Baldauff, Elise N. DePetris, David K. Walker | 2022-03-22 |
| 9993765 | Portable oxygen enrichment device and method of use | Stephen Douglas Galbraith, David K. Walker, Elise N. DePetris, Judith C. Galbraith | 2018-06-12 |
| 9492781 | Portable oxygen enrichment device and method of use | Stephen Douglas Galbraith, David K. Walker, Elise N. DePetris, Judith C. Galbraith | 2016-11-15 |
| 8894751 | Ultra rapid cycle portable oxygen concentrator | Stephen Douglas Galbraith, Evonne A. Baldauff, Elise Galbraith, David K. Walker, Robert B. LaCount | 2014-11-25 |
| 8888902 | Portable oxygen enrichment device and method of use | Stephen Douglas Galbraith, David K. Walker, Elise N. DePetris, Judith C. Galbraith | 2014-11-18 |