Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4987742 | Process for the generation of mechanical energy in the ammonia oxidation step of a nitric acid production process | Karl W. Wiegand, Erich Scheibler | 1991-01-29 |
| 4957720 | Process for the generation of mechanical energy in the ammonia oxidation step of a nitric acid production process | Karl W. Wiegand, Erich Scheibler | 1990-09-18 |