Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7102034 | Process for preparing sulfonated arylphosphines | Michael Riedel, Carl D. Frohning, Wilfried Fenske, Florian Rampf, Jurgen Herwig +8 more | 2006-09-05 |
| 6863872 | Method for recovering rhodium from hydroformylation products | Kurt Schalapski, Michael Mertl, Richard Fischer, Rainer Lukas | 2005-03-08 |
| 6864387 | Process for preparing sulfonated arylphosphines | Michael Riedel, Carl D. Frohning, Wilfried Fenske, Florian Rampf, Jurgen Herwig +8 more | 2005-03-08 |
| 6700021 | Preparation of aldehydes | Hans Bohnen, Carl D. Frohning | 2004-03-02 |
| 6610881 | Method for producing sulfonated aryl phosphines | Michael Riedel, Jurgen Herwig, Helmut Bahrmann, Klaus Bergrath, Wolfgang Zgorzel-Ski +4 more | 2003-08-26 |
| 6482972 | Isomeric nonanols and decanols, their preparation, phthalic esters obtained therefrom and their use as plasticizers | Helmut Bahrmann, Wilfried Fenske, Wolfgang Greb, Peter Heymanns, Peter Lappe +2 more | 2002-11-19 |
| 6211414 | Process for preparing aldehydes by hydroformylation | Sandra Bogdanovic, Helmut Bahrmann, Carl D. Frohning | 2001-04-03 |
| 6051743 | Process for the preparation of predominantly unbranched higher primary alcohols | Helmut Bahrmann, Gregor Deckers, Wolfgang Greb, Peter Heymanns, Peter Lappe +2 more | 2000-04-18 |
| 5808168 | Process for the hydroformylation of olefinically unsaturated compounds | Helmut Bahrmann, Dieter Frohning, Wilhelm Gick, Wolfgang Hofs, Heinz Kalbfell +4 more | 1998-09-15 |
| 5684208 | Process for preparing pentenals | Helmut Bahrmann, Peter Lappe, Bernhard Fell, Peter Hermanns | 1997-11-04 |
| 5661204 | Mixtures of isomeric decyl alcohols, phthalates obtainable therefrom, and their use as plasticizers | Helmut Bahrmann, Wolfgang Greb, Peter Heymanns, Peter Lappe, Thomas Muller +1 more | 1997-08-26 |
| 5583250 | Mixtures of isomeric decyl alcohols, phthalates obtainable therefrom, and their use as plasticizers | Helmut Bahrmann, Wolfgang Greb, Peter Heymanns, Peter Lappe, Thomas M uller +1 more | 1996-12-10 |
| 5516948 | Process for making a mixture of isomeric decyl alcohols | Helmut Bahrmann, Wolfgang Greb, Peter Heymanns, Peter Lappe, Thomas Muller +1 more | 1996-05-14 |
| 5463147 | Decyl alcohol mixtures, phthalic esters obtainable therefrom and their use as plasticizers | Helmut Bahrmann, Wolfgang Greb, Peter Heymanns, Peter Lappe, Thomas Muller +1 more | 1995-10-31 |
| 5462986 | Decyl alcohol mixtures, phthalic esters obtainable therefrom and their use as placticizers | Helmut Bahrmann, Wolfgana Greb, Peter Heymanns, Peter Lappe, Thomas Muller +1 more | 1995-10-31 |
| 5410072 | Mixtures of isomeric pentanoic acids, esters prepared therefrom, and their use as lubricants | Helmut Bahrmann, Wolfgang Greb, Georg Dambkes, Peter Heymanns, Heinz Kalbfell +6 more | 1995-04-25 |
| 5382716 | Decyl alcohol mixtures, phthalic obtainable therefrom, and their use as plasticizers | Helmut Bahrmann, Wolfgang Greb, Peter Heymanns, Peter Lappe, Jurgen Szameitat +1 more | 1995-01-17 |
| 5369162 | Decyl alcohol mixtures, phthalic esters obtainable therefrom and their use as plasticizers | Helmut Bahrmann, Wolfgang Greb, Peter Lappe, Peter Heymanns, Jurgen Szameitat +1 more | 1994-11-29 |
| 5268514 | Decyl alcohol mixtures, phthalic esters obtainable therefrom and their use as plasticizers | Helmut Bahrmann, Wolfgang Greb, Peter Lappe, Peter Heymanns, Jurgen Szameitat +1 more | 1993-12-07 |
| 5041228 | Process for separating mixtures of substances contained in an aqueous or aqueous/organic solution | W. A. Herrmann, Jurgen Kulpe, Werner Konkol, Hanswilhelm Bach, Wilhelm Gick +2 more | 1991-08-20 |
| 4879418 | Process for the preparation of aldehydes | Hanswilhelm Bach, Helmut Bahrmann, Boy Cornils, Wilhelm Gick, Volker Heim +1 more | 1989-11-07 |
| 4808758 | Hydroformylation process | Hanswilhelm Bach, Boy Cornils, Wilhelm Gick, Heinz-Dieter Hahn, Werner Konkol | 1989-02-28 |
| 4808757 | Process for the preparation of aldehydes | Boy Cornils, Werner Konkol, Hanswilhelm Bach, Wilhelm Gick, Helmut Bahrmann +1 more | 1989-02-28 |
| 4795727 | Rhodium catalysts and methods of preparation and use thereof | Hanswilhelm Bach, Helmut Bahrmann, Boy Cornils, Werner Konkol | 1989-01-03 |
| 4711648 | Process for purification of gases | Werner Konkol, Helmut Bahrmann, Georg Dambkes, Wilhelm Gick, Hanswilhelm Bach | 1987-12-08 |