Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9284222 | Mucilages for hydraulic setting compositions | Lars Fengler | 2016-03-15 |
| 9181131 | Redispersible powder composition for dry mortar formulations | Lars Fengler | 2015-11-10 |
| 9051218 | Building composition comprising cellulose ether | Grit Grote, Meinolf Brackhagen, Matthias Knarr, Roland Adden | 2015-06-09 |
| 8962714 | Hydraulic setting adhesive with improved open time | — | 2015-02-24 |
| 8604104 | Cellulose ether composition for dry mortar formulations | Lars Fengler | 2013-12-10 |
| 7259257 | Process for producing particulate, water-soluble cellulose derivatives using a superheated gas mixture containing steam | Hartwig Schlesiger, Martin Morning, Gunter Weber, Volker Eckhardt, Gerd Sonnenberg | 2007-08-21 |
| 6943247 | Building material compositions | Hartwig Schlesiger, Martin Morning, Gunter Weber, Werner Lange | 2005-09-13 |
| 6593468 | Essentially fiber-free cellulose ether with improved water retention, method for the production and use thereof | Werner Lange, Bernd Schriewer, Friedrich-Karl Lampert, Wilhelm Oppermann, Jorn-Bernd Pannek | 2003-07-15 |
| 6509461 | Process for producing particulate, water-soluble cellulose derivatives | Hartwig Schlesiger, Martin Morning, Gunter Weber, Rudolf Lelgemann | 2003-01-21 |
| 5808052 | Use of cellulose mixed ethers as additives for earth pressure shields | Klaus Szablikowski, Werner Lange, Jorn-Bernd Pannek | 1998-09-15 |
| 5463036 | Carboxymethylcellulose and its use in textile printing | Reinhard Kniewske, Eugen Reinhardt, Klaus Szablikowski | 1995-10-31 |
| 5455341 | Highly substituted carboxymethyl sulfoethyl cellulose ethers (CMSEC), a process for their production and their use in textile printing | Reinhard Kniewske, Eugen Reinhardt, Klaus Szablikowski | 1995-10-03 |
| 5442054 | Highly substituted sulphoalkycellulose derivatives, especially sulphoethycellulose ether, a process for their preparation and their use as thickening agent for textile printing pastes | Reinhard Kniewske, Eugen Reinhardt, Klaus Szablikowski | 1995-08-15 |
| 5385585 | Use of anionic alkyl cellulose mixed ethers in textile printing | Eugen Reinhardt, Reinhard Kniewske, Klaus Szablikowski | 1995-01-31 |
| 5385607 | Water-soluble sulphoalkyl hydroxyalkyl derivatives of cellulose and their use in gypsum- and cement-containing compounds | Klaus Szablikowski, Werner Lange | 1995-01-31 |
| 5358561 | Use of water-soluble sulphoalkyl derivatives of cellulose in gypsum-and cement-containing compounds | Klaus Szablikowski, Werner Lange | 1994-10-25 |
| 5278304 | Water-soluble sulfoethyl cellulose ethers of very high solution quality and a process for their production | Reinhard Kniewske, Klaus Szablikowski | 1994-01-11 |
| 5177199 | Water-soluble hydroxypropyl sulfoethyl cellulose derivatives (HPSEC) having a low degree of substitution and a process for their production | Klaus Szablikowski | 1993-01-05 |