Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5576425 | Process for the direct production of alkyl glycosides | Karlheinz Hill, Manfred Biermann, Henry Rossmaier, Rainer Eskuchen, Josef Wollmann +5 more | 1996-11-19 |
| 5559219 | Modified process for the direct production of alkyl glycosides | Joseph Wollmann, Rainer Eskuchen | 1996-09-24 |
| 5510482 | Process for bleaching discolored surface-active alkyl glycosides and for working up the bleached material | Rainer Eskuchen, Paul Schulz, Volker Bauer, Franz-Josef Carduck, Herbert Esser +3 more | 1996-04-23 |
| 5374716 | Process for the production of surface active alkyl glycosides | Manfred Biermann, Karlheinz Hill, Rainer Eskuchen, Josef Wollmann, Andreas Bruns +4 more | 1994-12-20 |
| 5318709 | Process for the production of surfactant mixtures based on ether sulfonates and their use | Rainer Eskuchen, Bernd Richter | 1994-06-07 |
| 5312974 | Process for the production of light-colored lower alkane-sulfonic acids, more particularly methanesulfonic acid | Rainer Eskuchen, Christoph Lohr | 1994-05-17 |
| 5292940 | Process for the preparation of alkali metal salts of ether-carboxylic acids | Franz-Josef Carduck, Harald Liebs | 1994-03-08 |
| 5274144 | Process for the production of metal soaps | Gottfried Duerr, Josef Wollmann, Harald Liebs, Hans-Otto Scheck | 1993-12-28 |
| 5138046 | Process for preparing alkylglucoside compounds from oligo- and/or polysaccharides | Rainer Eskuchen, Josef Wollman, Karlheinz Hill, Manfred Biermann | 1992-08-11 |
| 5064512 | Process for dyeing anodized aluminum | Dieter Brodalla, Juergen Lindener, Loert de Riese-Meyer, Christine Schroeder, Willi Buchmeier +1 more | 1991-11-12 |
| 5062997 | Process for the chlorination and sulfochlorination of organic compounds | Franz-Josef Carduck, Hubert Harth, Harald Liebs | 1991-11-05 |
| 5041691 | Aldol condensation of nitroparaffins | Rainer Eskuchen, Herbert Esser | 1991-08-20 |
| 5028654 | Composition and process for bonding rubber to metal | Wolf-Dieter Beiersdorf | 1991-07-02 |
| 5013832 | Process for working up water-soluble cellulose derivatives having high flocculation points | Wilfried Raehse, Guenther Just | 1991-05-07 |
| 5001285 | Process for the bromination of nitro-alcohols | Rainer Eskuchen, Herbert Esser | 1991-03-19 |
| 4973686 | Process for the sulfonation and/or sulfatization of organic components with SO.sub.3 in an organic reaction medium | Josef Kretschmann, Franz-Josef Carduck, Hubert Harth, Dirk Springer | 1990-11-27 |
| 4968789 | Process and means for the purification of cellulose ethers | Wilfried Raehse, Guenther Just, Dieter Kuehling, Siegfried Emde, Erhard Kuehn | 1990-11-06 |
| 4968360 | Process for desludging phosphating baths and device for carrying out said process | Kurt Hosemann, Karl-Heinz Gottwald, Hubert Harth | 1990-11-06 |
| 4963271 | Process for the separation and purification of cellulose ethers and cellulose derivatives | Wilfried Raehse, Norbert Kuehne | 1990-10-16 |
| 4954268 | Process for removing cellulose ethers from a cellulose ether suspension | Guenther Just | 1990-09-04 |
| 4939001 | Process for sealing anodized aluminum | Dieter Brodalla, Winfried Kirchhoff, Helmut Blum, Wolfgang Riedel | 1990-07-03 |
| 4927946 | Process for the preparation of 5-bromo-5-nitro-1,3-dioxane | Rainer Eskuchen, Herbert Esser, Hasso Leischner | 1990-05-22 |
| 4908133 | Process for working up aqueous electrolyte-containing suspensions of highly swellable layer silicates | Norbert Kuehne | 1990-03-13 |
| 4851525 | Conversion of organophosphonic acids into their salts using intense shear | Hubert Harth, Dirk Springer, Franz Foerg | 1989-07-25 |
| 4728731 | Reactor and its use in polysaccharide ether production | Wilfried Raehse, Norbert Kuehne | 1988-03-01 |