Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7553910 | Preparation of derivatized dithiols | Hermann-Josef Weidenhaupt, Winfried Jeske, Thomas Kleiner | 2009-06-30 |
| 7375164 | Use of metal alkanedithiols as crosslinking agents for unsaturated rubbers | Hermann-Josef Weidenhaupt, Josef Hahn, Nicole Häp, Petra Pallogh, Nesibe Ucal +1 more | 2008-05-20 |
| 7319124 | Vulcanizing agents based on organic sulphur-nitrogen compounds for unsaturated rubbers and mixtures of these | Hermann-Josef Weidenhaupt, Josef Hahn, Andreas Mihalyi, Uwe Zettl | 2008-01-15 |
| 7217834 | Preparation of thiosulphuric acid derivatives | — | 2007-05-15 |
| 6825282 | Diene rubber compounds for improved rubber moldings | Winfried Jeske, Hermann-Josef Weidenhaupt | 2004-11-30 |
| 6747122 | Process for the preparation of polymeric sulfur compounds | Josef Hahn, Marco Runk, Hermann-Josef Weidenhaupt | 2004-06-08 |
| 6359045 | Vulcanizable rubber compounds containing styrene-butadiene and butadiene rubbers | Winfried Jeske, Hermann-Josef Weidenhaupt | 2002-03-19 |
| 6319993 | Vulcanizing agents for unsaturated rubber mixtures | Hermann-Josef Weidenhaupt, Josef Hahn, Marco Runk | 2001-11-20 |
| 5599861 | Moulded, non-caking masticating agents | — | 1997-02-04 |
| 5542974 | Shaped masticating agents containing paraffin | — | 1996-08-06 |
| 5403566 | Recovery of hydrogenation catalysts from solutions of hydrogenated nitrile rubber | Peter Panster, Stefan Wieland, Werner Obrecht | 1995-04-04 |
| 5387647 | Thermoplastic molding compounds of polyamide and hydrogenated nitrile rubber | Herbert Eichenauer, Josef Merten, Karl-Heinz Ott | 1995-02-07 |
| 5362810 | Thermoplastic molding compositions of aromatic polyether sulfone and hydrogenated nitrile rubber | Herbert Eichenauer, Thomas Eckel, Karl-Heinz Ott | 1994-11-08 |
| RE34548 | Process for the selective hydrogenation of unsaturated compounds | Paul Fiedler, Rudolf Braden | 1994-02-15 |
| 5187232 | Rubber compounds of polychloroprene and hydrogenated nitrile rubber | Rudiger Musch, Joachim Thormer, Friedrich Leibbrandt | 1993-02-16 |
| 5034469 | Hydrogenation of unsaturated polymers containing nitrile groups | Joachim Thormer, Wilfried Nolte, Johann Hohn, Paul Fiedler, Thomas Himmler | 1991-07-23 |
| 4978771 | Process for the selective hydrogenation of unsatuated compounds | Paul Fiedler, Rudolf Braden | 1990-12-18 |
| 4857591 | Thermoplastic moulding compositions of ABS and hydrogenated nitrile rubber | Herbert Eichenauer, Joachim Doring, Rudolf Casper, Karl-Heinz Ott | 1989-08-15 |
| 4853441 | Process for hydrogenating nitrile group-containing unsaturated polymers | Rudolf Casper | 1989-08-01 |
| 4829128 | Low molecular weight copolymers and covulcanizates produced therefrom | Zsolt Szentivanyi, Joachim Thormer | 1989-05-09 |
| 4812587 | Process for selective hydrogenation of C--C double bonds in the presence of reducible, nitrogen-containing groups and new ruthenium complex compounds | Paul Fiedler, Rudolf Braden | 1989-03-14 |
| 4795788 | Process for the selective hydrogenation of unsaturated polymers containing nitrile groups | Thomas Himmler, Paul Fiedler, Rudolf Braden | 1989-01-03 |
| 4778850 | Thermoplastic moulding materials made from vinyl chloride polymers and graft polymers and having improved properties | Christian Lindner, Hans-Eberhard Braese, Rudolf Casper, Karl-Heinz Ott | 1988-10-18 |
| 4774295 | Polymer mixtures and covulcanizates produced therefrom | Heinrich Konigshofen, Zsolt Szentivanyi, Joachim Thormer | 1988-09-27 |
| 4746707 | Process for the selective hydrogenation of unsaturated compounds | Paul Fiedler, Rudolf Braden, Joachim Thormer | 1988-05-24 |