Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11220942 | System and method for exhaust-gas aftertreatment of an internal combustion engine | Falk-Christian Baron Von Ceumern-Lindenst Jerna, Stefan Paukner | 2022-01-11 |
| 10781801 | Axial-piston motor and cyclic process device | Asmus Carstensen, Artur Semke, Thomas Schulenburg, Andreas Herr, Marcus Dallmann +5 more | 2020-09-22 |
| 5886209 | Preparation of 2-(4-hydroxyphenoxy) propionates | Thomas Wettling, Manfred Dimmler, Jochem Henklemann | 1999-03-23 |
| 5389110 | Azo dyes and process of dyeing with azo dyes which contain an N-(hydroxysulfonylphenylalkyl)pyridone coupling component | Johannes P. Dix, Gunther Lamm, Helmut Reichelt | 1995-02-14 |
| 5298592 | Preparation of polyaryl ethers with nitrogen compound catalysts | Alexander Aumueller, Wolfgang Eberle, Gerhard Heinz, Christiane Husemann, Juergen Koch +1 more | 1994-03-29 |
| 5256826 | Preparation of aromatic carbonyl or sulfonyl compounds with an aryl ether structure | Erwin Hahn, Heinrich J. Eilingsfeld, Helmut Reichelt, Alexander Aumueller | 1993-10-26 |
| 5072049 | Process for the preparation of bis(4-hydroxyphenyl) sulfone | Michael Stumpp, Peter Neumann, Helmut Reichelt | 1991-12-10 |