Issued Patents All Time
Showing 1–25 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7102034 | Process for preparing sulfonated arylphosphines | Michael Riedel, Ernst Wiebus, Carl D. Frohning, Wilfried Fenske, Florian Rampf +8 more | 2006-09-05 |
| 6864387 | Process for preparing sulfonated arylphosphines | Michael Riedel, Ernst Wiebus, Carl D. Frohning, Wilfried Fenske, Florian Rampf +8 more | 2005-03-08 |
| 6703507 | Ionic liquids and production and use thereof | Hans Bohnen | 2004-03-09 |
| 6610881 | Method for producing sulfonated aryl phosphines | Michael Riedel, Jurgen Herwig, Klaus Bergrath, Wolfgang Zgorzel-Ski, Robert Eckl +4 more | 2003-08-26 |
| 6482972 | Isomeric nonanols and decanols, their preparation, phthalic esters obtained therefrom and their use as plasticizers | Wilfried Fenske, Wolfgang Greb, Peter Heymanns, Peter Lappe, Thomas Muller +2 more | 2002-11-19 |
| 6472565 | Method for producing aldehydes | Hans Bohen | 2002-10-29 |
| 6274774 | Process for preparing aldehydes in the presence of an aqueous phase containing rhodium and sulphonated triarylphosphines as catalyst | Sandra Bogdanovic, Carl D. Frohning | 2001-08-14 |
| 6211414 | Process for preparing aldehydes by hydroformylation | Sandra Bogdanovic, Carl D. Frohning, Ernst Wiebus | 2001-04-03 |
| 6191063 | Catalyst and process for the production of aldehydes by hydroformylation of olefinically unsaturated compounds | Sandra Bogdanovic, Carl D. Frohning, Matthias Beller, Steffen Haber, Hans-Jerg Kleiner | 2001-02-20 |
| 6187953 | Guanidinium phosphanes, their production and their use | Othmar Stelzer, Franz Peter Schmidtchen, Antonella Hessler, Michael Tepper, Harald Dibowski +1 more | 2001-02-13 |
| 6160180 | Tertiary phosphanes containing alkylene glycol groups | Steffen Haber, Hans-Jerg Kleiner, Sandra Bogdanovic, Carl D. Frohning | 2000-12-12 |
| 6114272 | Catalyst of rhodium and a non-aqueous ligand liquid for preparation of aldehydes | — | 2000-09-05 |
| 6103908 | Nonaqueous ionic ligand liquids, process for preparing them and their use as catalyst constituents | Markus Schulte | 2000-08-15 |
| 6054617 | Nitro compound-reducing process | Boy Cornils, Andreas Dierdorf, Steffen Haber | 2000-04-25 |
| 6051743 | Process for the preparation of predominantly unbranched higher primary alcohols | Gregor Deckers, Wolfgang Greb, Peter Heymanns, Peter Lappe, Thomas Muller +2 more | 2000-04-18 |
| 6025529 | Process for preparing aldehydes | — | 2000-02-15 |
| 6020532 | Process for the preparation of aldehydes employing catalyst compositions based on rhodium complexes containing diphosphine ligands | Peter Lappe, Thomas Muller | 2000-02-01 |
| 5972825 | Substituted diphenyldiphosphines and a process for their preparation | Dieter Regnat, Hans-Jerg Kleiner | 1999-10-26 |
| 5932770 | Process for recovery of phosphine oxides and alklylsarylphosphines from reaction mixtures of a homogeneous hydroformylation | Thomas Muller | 1999-08-03 |
| 5922634 | Catalyst systems based on rhodium complexes containing diphosphine ligands and their use in the preparation of aldehydes | Peter Lappe, Thomas Muller | 1999-07-13 |
| 5874642 | Bis ethers containing a 2,2'-biaryl radical and a process for their preparation | Dieter Regnat, Hans-Jerg Kleiner | 1999-02-23 |
| 5847200 | Substituted diphosphines and a process for their preparation | Peter Lappe, Thomas Muller | 1998-12-08 |
| 5817884 | Process for preparing aldehydes | — | 1998-10-06 |
| 5808168 | Process for the hydroformylation of olefinically unsaturated compounds | Dieter Frohning, Wilhelm Gick, Wolfgang Hofs, Heinz Kalbfell, Harald Kappesser +4 more | 1998-09-15 |
| 5801287 | Substituted diphenyldiphosphines and a process for their preparation | Dieter Regnat, Hans-Jerg Kleiner | 1998-09-01 |