Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4645579 | Preparation of aqueous hydroxylamine solutions | Franz-Josef Weiss, Wolfgang Habermann, Peter Hammes, Erwin Thomas, Peter Thoma | 1987-02-24 |
| 4634584 | Stabilized solutions of hydroxylamine or its salts in water or alcohols, and their preparation | Otto-Alfred Grosskinsky, Josef Ritz, Erwin Thomas, Franz-Josef Weiss | 1987-01-06 |
| 4629613 | Stabilized solutions of hydroxylamine or its salts in water or alcohols, and their preparation | Otto-Alfred Grosskinsky, Josef Ritz, Erwin Thomas, Franz-Josef Weiss | 1986-12-16 |
| 4576804 | Stabilized solutions of hydroxylamine or its salts | Otto-Alfred Grosskinsky, Josef Ritz, Erwin Thomas, Franz-Josef Weiss | 1986-03-18 |
| 4551318 | Stabilized solutions of hydroxylamine or its salts in water or alcohols, and their preparation | Otto-Alfred Grosskinsky, Josef Ritz, Erwin Thomas, Franz-Josef Weiss | 1985-11-05 |
| 4482764 | Preparation of diols | Guenter Herrmann, Juergen Paetsch, Wolfgang Reiss, Siegfried Winderl | 1984-11-13 |
| 4477424 | Continuous preparation of hydroxylammonium salts | Otto-Alfred Grosskinsky, Gunther Rapp, deceased, Erwin Thomas | 1984-10-16 |
| 4457906 | Preparation of hydroxylammonium salts | Otto-Alfred Grosskinsky, Guenther Rapp, Erwin Thomas | 1984-07-03 |
| 4404176 | Preparation of hydroxylammonium salts | Otto-Alfred Grosskinsky, Gunther Rapp, deceased, Erwin Thomas | 1983-09-13 |
| 4387082 | Removal of nitrous oxide from exit gases containing this compound during the production of hydroxylammonium salts | Alfred-Otto Grosskinsky, Guenther Rapp, Erwin Thomas, Ruediger Schmitz | 1983-06-07 |
| 4360461 | Process for obtaining caprolactam by cleaving caprolactam oligomers | Hugo Fuchs, Otto-Alfred Grosskinsky | 1982-11-23 |
| 4350630 | Continuous extraction of caprolactam from an aqueous solution containing caprolactam and its oligomers | Hugo Fuchs, Uwe Brand, Ernst Deuker | 1982-09-21 |
| 4301073 | Purification of caprolactam | Hugo Fuchs, Otto-Alfred Grosskinsky, Klaus Kartte | 1981-11-17 |