Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6235913 | Method for producing fatty acid polyglycol ester sulphates | Hans-Christian Raths, Thomas Engels, Joerg Kahre | 2001-05-22 |
| 5523432 | Process for the production of quaternary ammonium salts of fatty acid hydroxyalkanesulfonic acids | Hans-Christian Raths, Manfred Biermann, Timothy J. Cassady | 1996-06-04 |