Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5575985 | Preparation of stable graphite | Hans-Dieter Pinter | 1996-11-19 |
| 5127999 | Process for the preparation of alkali metal dichromates and chromic acid by electrolysis | Rainer Weber, Norbert Lonhoff, Hans-Dieter Block, Hans-Dieter Pinter | 1992-07-07 |
| 5128000 | Dimensionally stable anodes and their use in the preparation of alkali metal dichromates and chromic acid | Rainer Weber, Norbert Lonhoff, Hans-Dieter Block | 1992-07-07 |
| 5096547 | Preparation of chromic acid using bipolar membranes | Rainer Weber, Wolfgang Ohlendorf | 1992-03-17 |
| 5094729 | Processes for the preparation of alkali metal dichromates and chromic acid | Hans-Dieter Pinter, Rainer Weber, Hans-Dieter Block, Norbert Lonhoff | 1992-03-10 |
| 5071522 | Process for the preparation of chromic acid | Hans-Dieter Pinter, Rainer Weber, Hans-Dieter Block, Norbert Lonhoff | 1991-12-10 |
| 5068015 | Electrochemical process for the production of chromic acid | Hans-Dieter Block, Norbert Lonhoff, Bernd Makowka, Rainer Weber, Bernhard Spreckelmeyer | 1991-11-26 |
| 5051155 | Processes for the preparation of alkali metal dichromates and chromic acid | Hans-Dieter Pinter, Rainer Weber, Hans-Dieter Block, Norbert Lonhoff | 1991-09-24 |
| 4981573 | Process for the production of alkali dichromates and chromic acid employing an anode of valve metal activated by electrodepositing noble metals from melts | Rainer Weber, Hans-Dieter Block, Norbert Lonhoff | 1991-01-01 |
| 4669269 | Turbocharged internal combustion engine | Hans Dinger | 1987-06-02 |
| 4548039 | Turbocharged internal combustion engine | Hans Dinger | 1985-10-22 |
| 4539082 | Woven diaphragm for aqueous electrolytes | Klaus Bloch | 1985-09-03 |
| 4439292 | Treatment of perfluorinated polymer membranes containing carboxyl groups | Hans G. Fitzky | 1984-03-27 |
| 4428192 | Turbocharged internal combustion engine | Hans Dinger | 1984-01-31 |
| 4422296 | Internal combustion engine with supercharging by exhaust gas turbochargers and an auxiliary combustion chamber | Hans Dinger | 1983-12-27 |
| 4402811 | Hydrochloric acid electrolytic cell for the preparation of chlorine and hydrogen | Ernst Tepe, Lothar Sesterhenn | 1983-09-06 |
| 4388802 | Internal combustion engine | Hans Dinger | 1983-06-21 |