Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5993659 | Method and plant for waste water treatment | Hans-Peter Riedele | 1999-11-30 |
| 4912791 | Pretreatment of textile materials: alkaline scour or bleach with organo-phosphorus compound | Werner Streit, Matthias Kummer, Johannes P. Dix, Alfred Oftring | 1990-04-03 |
| 4369143 | Process for the preparation of naphthalene-1,3,5-trisulphonic acid | Horst Behre, Heinz U. Blank | 1983-01-18 |
| 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 |