Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348334 | Process for producing the magnesium salt of 3-nitro-naphthalene-1,5-disulfonic acid (nitro-Armstrong's acid) | Bernhard Albrecht, Hans-Helmut Frey, Vinzenz Habermacher, Horst Behre, Wolfgang Schenk +2 more | 1982-09-07 |
| 4324913 | Process for the preparation of 4-nitroso-diphenyl-amine | Karlfried Wedemeyer | 1982-04-13 |