Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5192514 | Method of removing selenium from flue gases | — | 1993-03-09 |
| 5011516 | Catalytic oxidation of SO.sub.2 to SO.sub.3 in the presence of fly ash | Ralph A. Altman, John P. Gooch | 1991-04-30 |
| 4872887 | Method for flue gas conditioning with the decomposition products of ammonium sulfate or ammonium bisulfate | Ralph F. Altman, John P. Gooch, Edward C. Landham, Jr. | 1989-10-10 |
| 4533364 | Method for flue gas conditioning with the decomposition products of ammonium sulfate or ammonium bisulfate | Ralph F. Altman, John P. Gooch, Roy E. Bickelhaupt, Robert S. Dahlin | 1985-08-06 |