Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8398945 | Removal of ammonia nitrogen, ammonium nitrogen and urea nitrogen by oxidation with hypochlorite-containing solutions from exhaust air in plants for producing ammonia and urea | Helmut Gehrke | 2013-03-19 |
| 7070750 | Multiple-pressure process for the production of ammonia | John Skaanderup-Larsen | 2006-07-04 |