Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637560 | Process for the production of surface-active anionic surfactant salts using superheated steam | Johann F. Fues | 1997-06-10 |
| 5615492 | Drying of water-containing useful materials or mixtures thereof with superheated steam | Gunter Effey, Wilhelm Beck | 1997-04-01 |
| 5597794 | Process for the production of detergent surfactant granules comprising a recycle step | Volker Bauer, Andreas Syldath, Ditmar Kischkel | 1997-01-28 |
| 5591707 | Process for producing free-flowing granules with superheated steam | Johann F. Fues, Herbert Pattberg, Kathleen Paatz | 1997-01-07 |