Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10507300 | Ultra rapid cycle portable oxygen concentrator | Stephen Douglas Galbraith | 2019-12-17 |
| 8894751 | Ultra rapid cycle portable oxygen concentrator | Stephen Douglas Galbraith, Kenneth J. McGowan, Evonne A. Baldauff, Elise Galbraith, David K. Walker | 2014-11-25 |
| 8440015 | Fly ash carbon passivation | John P. Baltrus, Douglas G. Kern | 2013-05-14 |
| 6319717 | Thermal acid base accounting in mine overburden | — | 2001-11-20 |
| 6254828 | Fluid cell substance analysis and calibration methods | — | 2001-07-03 |
| 5285071 | Fluid cell substance analysis and calibration methods | — | 1994-02-08 |
| 5204270 | Multiple sample characterization of coals and other substances by controlled-atmosphere programmed temperature oxidation | — | 1993-04-20 |