Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468399 | Process for isolating cyclopentane and/or cyclopentene | Arnd Stuwe, Rolf Dieter Wurtz, Michael Muller, Christian Gabel, Joachim Grub | 2002-10-22 |
| 6264799 | Process for isolating cyclopentane and/or cyclopentene | Arnd Stuwe, Rolf Dieter Wurtz, Michael Muller, Christian Gabel, Joachim Grub | 2001-07-24 |
| 6175049 | Process for the production of 1, 2-butadiene | Arnd Stuwe, Jurgen Linnemann, Christian Gabel, Bernd Hohmann, Joachim Grub | 2001-01-16 |
| 5789643 | Process for oligomerizing I-butene comprising hydroisomerizing portion of condensate and recycling the hydroisomerate to fractionation | Hans-Jurgen Bister, Arnd Stuwe | 1998-08-04 |
| 5378668 | Process for reactivating ammoxidation catalysts | Brigitte Beuke, Ernst-Friedrich Neeb, Nikolaus Paris | 1995-01-03 |
| 5141732 | Process for the removal of ammonium sulphate from tarrich waste streams from the production of (meth) acrylonitrile | Hans-Jurgen Haardt, Ernst-Friedrich Neeb | 1992-08-25 |
| 5091093 | Process for purifying acrylonitrile effluent | Arnd Stuwe, Joachim Grub | 1992-02-25 |
| 5036149 | Process for the preparation of ethylene/acrylonitrile copolymers, new ethylene/acrylonitrile copolymers and their use | Werner Obrecht, Szolt Szentivanyi, Hubert Sutter, Alois Kolwert | 1991-07-30 |
| 4910046 | Paint resin and its use for powder coating | Hans-Heribert Burgdorfer, Dieter Woltjes | 1990-03-20 |
| 4882393 | Ionomer-modified polyethylene as film material | Alois Kolwert, Hubert Sutter, Dieter Woltjes | 1989-11-21 |
| 4783515 | Copolymers containing ethylene and .alpha.-cyanoacrylates | Helmut Waniczek, Herbert Bartl | 1988-11-08 |
| 4712434 | Device for emission-free sampling of volatile liquids | Hagen Norenberg, Friedhelm Bergmann, Manfred Stiller, Horst Schlemmermeyer, Wilfried Schmidt +2 more | 1987-12-15 |
| 4504688 | Process for the preparation of pure alkyl tert-alkyl ethers and hydrocarbon raffinates which are largely free from isoolefins and from alkanols | Hans-Volker Scheef, Bernhard Schleppinghoff, Peter M. Lange | 1985-03-12 |
| 4409421 | Process for the preparation of pure tert.-olefins | Bruno Schulwitz, Bernhard Schleppinghoff, Hans-Volker Scheef, Peter M. Lange | 1983-10-11 |
| 4371725 | Process for the preparation of tertiary olefins and n-alkanols | Bernhard Schleppinghoff, Hans-Volker Scheef | 1983-02-01 |