Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880378 | Combustion plant with a device for reducing nitrogen oxides in flue gases | — | 1989-11-14 |
| 4851381 | Catalyst material for reducing nitrogen oxides in flue gases and method for producing the same | — | 1989-07-25 |
| 4849392 | Catalyst material for reducing the nitrogen oxides in flue gases | Dietmar Hein, Helmut Schmelz | 1989-07-18 |
| 4847234 | Plate-like catalyst | — | 1989-07-11 |
| 4814318 | Catalyst carrier material and method for producing the same | — | 1989-03-21 |