Issued Patents 1982
Showing 1–4 of 4 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, Lutz Kienitz +2 more | 1982-09-07 |
| 4331539 | Purification of regenerated sizing liquors | Wilfried Kothe, KARL POPP | 1982-05-25 |
| 4316862 | Process for the preparation of sulphonic acid chlorides | Heinz U. Blank, Ferdinand Hagedorn, Werner Evertz | 1982-02-23 |
| 4314950 | Process for the preparation of sulphonic acid chlorides | Theodor Pfister, Heinz U. Blank | 1982-02-09 |