Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7807826 | Purification of a crude lactam mixture by means of melt crystallization | Axel Hengstermann, Ralf Meier, Bernd Gunzel, Stephan Schäflein, Bernd-Holger Modrow | 2010-10-05 |
| 7608738 | Coammoxidation of ketones | Juergen Herwig, Georg Oenbrink, Bernd Guenzel, Dirk Kuppert | 2009-10-27 |
| 7495129 | Purification of a monomer by extraction with a phase former and crystallization | Torsten Balduf, Stefan Nordhoff, Dennis Thong Yu-Chiang, Axel Kobus | 2009-02-24 |
| 7253329 | Selective hydrogenation of cyclododecatriene to cyclododecene | Juergen Herwig, Norbert Wilczok, Rudolf Burghardt, Johann Gaube, Georg Oenbrink +1 more | 2007-08-07 |
| 7084300 | Work-up of residues in the preparation of carboxylic acids | Juergen Herwig, Ralf Richter, Georg Oenbrink | 2006-08-01 |
| 6942258 | Operating arrangement for a sliding door | — | 2005-09-13 |
| 6927308 | Method for synthesis of oximes | Stefan Leininger, Juergen Herwig, Georg Oenbrink | 2005-08-09 |
| 6861540 | Process for the epoxidation of cyclic alkenes | Jurgen Herwig, Georg Oenbrink, Bernd Gunzel, Jörg Lohmar | 2005-03-01 |
| 6828449 | Use of a settling accelerator in epoxidation | Juergen Herwig, Georg Oenbrink, Bernd Guenzel, Joerg Lohmar | 2004-12-07 |
| 6756475 | Preparation of polyoxymethylenes | Marian Mours, Rainer Anderlik, Gitta Egbers, Michael Kirschey | 2004-06-29 |
| 6639108 | Ammoximation of ketones and work-up by pervaporation/vapor permeation | Thomas Schiffer, Peter Esser, Franz-Felix Kuppinger, Günter Stevermüer, Georg Thiele | 2003-10-28 |
| 6620970 | Work-up of the ammoximation products of ketones by liquid-liquid extraction in a ternary solvent system | Thomas Schiffer, Peter Esser, Jorg Krissmann, Günter Stevermüer, Georg Thiele | 2003-09-16 |
| 6565131 | Power-assisted closing device | — | 2003-05-20 |
| 6540269 | Locking mechanism for a sliding door | Mathias Wurges | 2003-04-01 |
| 6422615 | Closure device with shutting aid | Jürgen Ehret | 2002-07-23 |
| 6343494 | Locking device | Dirk Hipp | 2002-02-05 |
| 6068771 | Method for sealing spiral wound filtration modules | Thomas C. McDermott, Jr., Stephen C. Jens, Robert F. Kovar | 2000-05-30 |
| 5673578 | Motor vehicle door lock with central locking system drive | — | 1997-10-07 |
| 4409849 | Probe for collecting test permeate from a multiple-membrane module | — | 1983-10-18 |
| 4309287 | Reverse-osmosis tubular membrane | William Eykamp, William W. Cooper, IV | 1982-01-05 |