Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10987627 | Reducing the emission of nitrogen oxide when starting up systems for producing nitric acid | — | 2021-04-27 |
| 10022669 | Process and apparatus for eliminating NOX and N2O | Meinhard Schwefer, Michael Groves, Rolf Siefert | 2018-07-17 |
| 9302222 | Process for reducing the nitrogen oxide off-gas concentration in a nitric acid plant during shut-down and/or start-up, and nitric acid plant suitable therefor | — | 2016-04-05 |