Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5410085 | Process for the preparation of chlorine-substituted aromatic amines and of catalysts | Walter Kipshagen, Herbert Schmidt, Thomas Schulz, Eberhard Zirngiebl | 1995-04-25 |
| 5288894 | Process for the preparation of dialkyl carbonates | Heinz Landscheidt, Erich Wolters, Alexander Klausener, Heinz U. Blank | 1994-02-22 |
| 5253993 | Apparatus for the production of pellets of metal powder used as catalysts | Wolfgang Gay, Wolfgang Korsch | 1993-10-19 |
| 5248840 | Process for the preparation of hydrooxydiphenyls | Otto Immel, Gerhard Darsow | 1993-09-28 |
| 5231213 | Process for the preparation of dialkyl carbonates | Heinz Landscheidt, Alexander Klausener, Erich Wolters, Heinz U. Blank | 1993-07-27 |
| 5135665 | Multichamber-candle filter element | Wolfgang Gay, Glenn Hohle | 1992-08-04 |
| 5135903 | Process for the production of pellets of metal powder as catalysts | Wolfgang Gay, Wolfgang Korsch | 1992-08-04 |
| 5120875 | Process for the preparation of chlorine-substituted aromatic amines | Ulrich Kappler, Herbert Schmidt, Jurgen Zander | 1992-06-09 |
| 5090997 | Process for producing powdered aluminum alloys | Jurgen Scharschmidt, Peter Kunert, Helmut Meinhardt | 1992-02-25 |
| 4792626 | Production of aromatic diamino compounds using a modified Raney catalyst | Dieter Becher, Eckart Waldau, Harro Witt | 1988-12-20 |
| 4774221 | Supported hydrogenation catalysts | Harald Medem, Herbert Schmidt, Burkhard Lachmann | 1988-09-27 |
| 4764498 | Silica-containing shaped articles and a process for their preparation | Adolf Wissner, Josef Haydn | 1988-08-16 |
| 4407733 | Supported catalysts and process for their preparation | Herbert Schmidt | 1983-10-04 |
| 4265834 | Process for the catalytic hydrogenation of nitrobenzene | Burkhard Lachmann, Josef Metten, Herbert Schmidt | 1981-05-05 |
| 4224248 | Process for the depyrophorization of pyrophoric metal catalysts and uses thereof | Josef Haydn | 1980-09-23 |