Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886602 | Process for the separation of biotechnologically produced valuable materials from a fermenter broth by crossflow micro- and/or ultrafiltration | Norbert Kuehne, Wilfried Raehse | 1989-12-12 |
| 4874552 | Process for simultaneous bleaching and neutralization of alpha-sulfofatty acid esters | Hans-Joachim Richtler, Udo Kreutzer, Klaus Koester, Hubert Harth | 1989-10-17 |
| 4866023 | Process for the shaping agglomeration of particulate solids and solids produced by the process | Wolfgang Ritter, Hans-Peter Handwerk | 1989-09-12 |
| 4855273 | Acid-resistant catalysts for the direct hydrogenation of fatty acids to fatty alcohols | Joachim Pohl, Gerd Goebel | 1989-08-08 |
| 4832866 | Process for the production of free-flowing, stable foam inhibitor concentrates by compacting granulation | Paul Schulz, Juergen Waldmann, Martin Witthaus, Edmund Schmadel | 1989-05-23 |