Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12291582 | Process for producing a crosslinked cellulose ether | Alexandra Hild, Joerg Neubauer, Sonja Menz, Michael Schreck | 2025-05-06 |
| 10759873 | Esterified cellulose ethers of high molecular weight and homogeneity | Oliver Petermann, Meinolf Brackhagen | 2020-09-01 |
| 10730957 | Process of preparing an esterified cellulose ether in the presence of an alkali metal carboxylate and an aliphatic carboxylic acid | Oliver Petermann, Warren K. Miller | 2020-08-04 |
| 10526421 | Esterified cellulose ethers of low acetone-insoluble content | Oliver Petermann, Matthias Knarr | 2020-01-07 |
| 10196461 | Efficient process for preparing an ester of a cellulose ether | Oliver Petermann, Robert B. Appell | 2019-02-05 |
| 9890220 | Esterified cellulose ethers of very high molecular weight | Oliver Petermann, Meinolf Brackhagen | 2018-02-13 |
| 9745387 | Partially cross-linked esterified cellulose ethers | Meinolf Brackhagen, Nicholas S. Grasman, Yongfu Li, David M. Meunier, Oliver Petermann | 2017-08-29 |
| 9587037 | Process for recovering an esterified cellulose ether from a reaction product mixture | Oliver Petermann, Robert B. Appell, Robert T. Nilsson | 2017-03-07 |
| 9486532 | Esterified cellulose ethers of low viscosity | Meinolf Brackhagen, Steven J. Guillaudeu, Nicholas S. Grasman, Oliver Petermann, Robert L. Schmitt | 2016-11-08 |
| 9453081 | Process of preparing an ester of a cellulose ether | Oliver Petermann, Robert B. Appell | 2016-09-27 |
| 9187572 | Treatment of polysaccarides with dialdehydes | Alexandra Hild, Axel Altmann, Roland Adden | 2015-11-17 |
| 9156919 | Method of removing alkylene halogenohydrin from cellulose ether | Richard A. Engelman, David W. Ziettlow, Robert E. Scheid, Jr., Charles B. Mallon, Andrew C. Arthur | 2015-10-13 |
| 8993747 | Process for improved production of alkali cellulose and cellulose derivatives | Bettina Hoelzer | 2015-03-31 |