Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4789531 | Method of removing nitrogen oxides (NO.sub.x) from gases, especially flue gases | Andreas Eichholtz | 1988-12-06 |
| 4735785 | Method of removing oxides of nitrogen from flue gas | Hans A. Eichholtz | 1988-04-05 |