Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6698293 | Drive tester and transmission tester | Hubert Reinisch | 2004-03-02 |
| 6063353 | Process for krypton an xenon extraction | Michael Huala, Ralph Spöri | 2000-05-16 |
| 6008418 | Process for preparing 1,6 hexanediol with a level of purity over 99% | Rolf Fischer, Rolf Pinkos, Frank Stein, Harald Rust, Boris Breitscheidel | 1999-12-28 |
| 5981769 | Process for preparing 1,6- hexanediol and caprolactone | Rolf Fischer, Rolf Pinkos, Frank Stein, Boris Breitscheidel, Harald Rust | 1999-11-09 |
| 5955045 | Removal of nitrogen oxides from gases | Hans-Peter Langebach, Hartmut Neumann, Ulrike Wenning | 1999-09-21 |
| 5900125 | Continuous preparation of alkyl esters of (meth)acrylic acid and apparatus for this purpose | Herbert Exner, Toni Dockner, Christiane Potthoff, Albrecht Dams | 1999-05-04 |
| 5811574 | Continuous preparation of alkyl esters of (meth)acrylic acid and apparatus for this purpose | Herbert Exner, Toni Dockner, Christiane Potthoff, Albrecht Dams | 1998-09-22 |
| 5762809 | Process for treating a medium containing organic constituents | Gerhard Luft, Karl Gregor, Hermann Schwarz, Farsin Yadegardjam | 1998-06-09 |
| 5763643 | Preparation of alkyl esters of (meth)acrylic acid | Ulrich Annen, Herbert Exner, Michael Fried, Ulrich Rauh | 1998-06-09 |
| 5734074 | Continuous preparation of alkyl esters of (meth) acrylic acid | Toni Dockner, Herbert Exner, Christiane Potthoff | 1998-03-31 |
| 5683553 | Preparation of 3-chlorophthalic anhydride | Erwin Brunner, Eckhardt Brandt | 1997-11-04 |
| 5453208 | Oxidation of ammonium ions and organic carbon in wastewaters | Thomas Papkalla, Ulrich Kanne, Peter Stops | 1995-09-26 |
| 5232605 | Breakdown of waste waters containing aromatic nitro compounds | Toni Dockner, Ulrich Kanne, Thomas Papkalla | 1993-08-03 |
| 4681946 | Preparation of nicotinamide | Volker Diehl, Peter Stops, Hans Hellbach, Erwin Brunner | 1987-07-21 |
| 4666695 | Settling of sulfur in sulfide removal process | Peter Haussinger, Ludwig Fruhstorfer, Hans-Jurgen Neubert | 1987-05-19 |
| 4664903 | Removal of sulfur compounds from gases | Hans Becker, Michael Heisel | 1987-05-12 |
| 4492676 | Process for preventing the plugging of installations with metallic sulfides | Heinz Karwat | 1985-01-08 |
| 4399111 | Process for removal of sour gases by scrubbing | Eberhard Lassmann, Heinz Karwat | 1983-08-16 |
| 4343777 | Method of scrubbing acid gases containing polymerizable organic components | Erich Dannhorn | 1982-08-10 |
| 4298766 | Preparation of 2-methyl-pentane-2,4-diol | Franz J. Broecker, Rolf Platz, Joachim Stabenow | 1981-11-03 |