Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5708162 | Process for the preparation of low molecular weight polysaccharide ethers | Reinhard Doenges | 1998-01-13 |
| 4985152 | Process for separating solvents used in the purification of products | Guenther Welt, Manfred Ziegelmayer | 1991-01-15 |
| 4794166 | Process for the preparation of a hydrogel which is largely free from monomers | Friedrich Engelhardt, Manfred Schrod, Manfred Ziegelmayer, Reinhard Donges | 1988-12-27 |
| 4501887 | Preparing cellulose ethers in a dimethoxyethane/(dispersing auxiliary) medium | Wolfgang Kornrumpf, Eberhard Perplies, Utz-Hellmuth Felcht | 1985-02-26 |
| 4363784 | Apparatus for continuously producing water-soluble hydroxyalkyl cellulose and related ethers | Arno Holst, Hans Kunkler, Klaus Stolting, Wolfgang Schminke | 1982-12-14 |
| 4310663 | Continuous process for producing water-soluble hydroxyalkyl cellulose and related ethers | Arno Holst, Hans Kunkler, Klaus Stolting, Wolfgang Schminke | 1982-01-12 |