Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7102034 | Process for preparing sulfonated arylphosphines | Ernst Wiebus, Carl D. Frohning, Wilfried Fenske, Florian Rampf, Jurgen Herwig +8 more | 2006-09-05 |
| 6864387 | Process for preparing sulfonated arylphosphines | Ernst Wiebus, Carl D. Frohning, Wilfried Fenske, Florian Rampf, Jurgen Herwig +8 more | 2005-03-08 |
| 6610881 | Method for producing sulfonated aryl phosphines | Jurgen Herwig, Helmut Bahrmann, Klaus Bergrath, Wolfgang Zgorzel-Ski, Robert Eckl +4 more | 2003-08-26 |
| 6255508 | Process for preparing a methylene-bridged biscyclopentadienyl compound | Frank Kuber, Berthold Schiemenz | 2001-07-03 |
| 6218489 | Polymerization process using a monocyclopentadienyl compound as a catalyst component | Gerhard Erker, Lothar Duda | 2001-04-17 |
| 6187953 | Guanidinium phosphanes, their production and their use | Othmar Stelzer, Franz Peter Schmidtchen, Antonella Hessler, Michael Tepper, Harald Dibowski +1 more | 2001-02-13 |
| 6137013 | Method of stabilizing aldehydes | Wolfgang Zgorzelski, Michael Messerschmidt, Klaus Bergrath | 2000-10-24 |
| 6090739 | Transition metal compound | Gerhard Erker, Lothar Duda | 2000-07-18 |
| 6069264 | Transition metal compound | Gerhard Erker, Martin Konnemann | 2000-05-30 |
| 6063949 | Stereorigid metallocene compound | Michael Aulbach, Frank Kuber, Freddy Helmer-Metzmann | 2000-05-16 |
| 6040469 | Metallocene compound | Thomas Weller, Alexandra Jacobs, Wolfgang Anton Herrmann, Markus Morawietz | 2000-03-21 |
| 6020444 | Process for preparing a cycloolefin copolymer | Thomas Weller, Alexandra Jacobs | 2000-02-01 |
| 5945553 | Process for preparing a methylene-bridged biscyclopentadienyl compound | Frank Kuber, Berthold Schiemenz | 1999-08-31 |
| 5869586 | Process for preparing a cycloolefin copolymer | Thomas Weller, Alexandra Jacobs | 1999-02-09 |
| 5840947 | Organometallic compound | Frank Kuber, Bernd Bachmann, Andreas Winter | 1998-11-24 |
| 5770752 | Process for reducing the concentration of by-products in product mixtures | Wilhelm Kaufmann, Thomas Wisser, Johann Streb, Thomas Rink, Roland Zenk +1 more | 1998-06-23 |
| 5750752 | Transition metal compound | Frank Kuber, Michael Aulbach, Gerhard Erker, Martin Konemann | 1998-05-12 |
| 5670681 | Process for preparing a carbon-bridged biscyclopentadiene compound | Frank Kuber | 1997-09-23 |