Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5994561 | Process for the preparation of aromatic maleimides | Ludger Heiliger, Rudiger Herpich, Friedrich-Wilhelm Ullrich | 1999-11-30 |
| 5824817 | Herbicidal compositions based on 2,6-dichloro-3-fluoro-benzonitrile, and new intermediates | Reinhard Lantzsch, Werner Bussmann, Markus Dollinger, Hans-Joachim Santel | 1998-10-20 |
| 5773630 | Process for the preparation of N-substituted cyclic imides | Torsten Groth, Karl-Erwin Piejko, Winfried Joentgen, Bernd Alig, Werner Struver | 1998-06-30 |
| 5726265 | Thermoplastics having a high heat deflection temperature and improved heat stability | Karl-Erwin Piejko, Herbert Eichenauer, Torsten Groth, Bernd-Michael Konig | 1998-03-10 |
| 5714541 | Thermoplastics having a high heat deflection temperature and improved heat stability | Karl-Erwin Piejko, Herbert Eichenauer, Torsten Groth, Bernd-Michael Konig | 1998-02-03 |
| 5684163 | Process for the preparation of N-(ortho-alkylphenyl)-imides | Torsten Groth, Bernd-Michael Konig, Michael Schwamborn | 1997-11-04 |
| 5672719 | Process for the preparation of isobenzofurandiones | Helmut Fiege | 1997-09-30 |
| 5545779 | Process for the hydrodehalogenation of halogenated benzenes | Michael Pies, Helmut Fiege | 1996-08-13 |
| 5523481 | Process for the preparation of dialkyl dicarbonates | Michael Pies, Helmut Fiege, Gebhard Merz | 1996-06-04 |
| 5466881 | Process for preparing m-chloroaromatics | Michael Pies, Helmut Fiege, Lothar Puppe | 1995-11-14 |
| 5101075 | Process for the preparation of bis-and tris-(3-dimethylaminopropyl)amine | Helmut Fiege, Wolfgang Kiel | 1992-03-31 |
| 5096625 | Process for the sulphoxidation of N-paraffins | Helmut Fiege | 1992-03-17 |
| 4827057 | Process for preparing 1,2-dichlorobenzene | Helmut Fiege, Herbert Schmidt, Karlfried Wedemeyer | 1989-05-02 |
| 4782190 | Process for the preparation of 4-nitrophenetol | Karlfried Wedemeyer | 1988-11-01 |
| 4740333 | Process for the preparation of 5-fluorotoluene-2,4-disulphochloride | Herbert Diehl, Karlfried Wedemeyer | 1988-04-26 |