Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4950800 | Process for the preparaton of 2-methylbutanal | Jurgen Weber, Peter Lappe | 1990-08-21 |
| 4918247 | Process for the preparation of 2,2-dimethylpropanediol-1,3 | Norbert Breitkopf, Wolfgang Hofs, Heinz Kalbfell, Franz Thonnessen, Peter Lappe | 1990-04-17 |
| 4885383 | Process for the preparation of carboxylic acid methyl esters | Jurgen Weber, Peter Lappe | 1989-12-05 |
| 4863376 | Walking beam furnace | Dieter Schwab, Augusto Funghini | 1989-09-05 |
| 4710321 | Quaternary ammonium salts of sulfonated triarylphosphines and process for the production thereof | Helmut Bahrmann, Boy Cornils, Wolfgang Lipps, Peter Lappe | 1987-12-01 |
| 4673535 | Quaternary ammonium salts of sulfonated triarylphosphines and process for the production thereof | Helmut Bahrmann, Boy Cornils, Wolfgang Lipps, Peter Lappe | 1987-06-16 |
| 4648837 | Walking beam furnace | Augusto Funghini, Dieter Schwab | 1987-03-10 |
| 4515986 | Process for preparing 3-dimethylamino-2,2-dimethylpropanal | Wolfgang Bernhagen, Volker Falk, Jurgen Weber, Ernst Wiebus, Claus Kniep | 1985-05-07 |
| 4483802 | Process for the preparation of sulfonated aryl phosphine | Roderich Gartner, Boy Cornils, Peter Lappe | 1984-11-20 |
| 4404410 | Process for preparing 2,3-dimethyl-2,3-butanediol | Boy Cornils, Jurgen Weber, Wolfgang Bernhagen | 1983-09-13 |
| 4330262 | Walking beam furnace | Franz A. Kranzl | 1982-05-18 |
| 4317925 | Process for the production of di-n-propylacetic acid | Jurgen Weber, Wolfgang Bernhagen | 1982-03-02 |
| 4317945 | Process for preparing 2-methyl-2-sec.butyl-1,3-propanediol | Wolfgang Bernhagen, Jurgen Weber, Helmut Bahrmann | 1982-03-02 |
| 4307252 | 2-Propyl-pent-4-en-1-al | Jurgen Weber, Wolfgang Bernhagen | 1981-12-22 |
| 4288643 | Process for preparing 2,3-dimethyl-butene-2 | Jurgen Weber, Wolfgang Bernhagen | 1981-09-08 |
| 4283564 | Process for preparing methacrolein | Wolfgang Bernhagen, Hanswilhelm Bach, Eike Brundin, Wilhelm Gick, Adolf Hack | 1981-08-11 |
| 4275242 | Process for preparing 2-methylenealdehydes | Jurgen Weber, Wolfgang Bernhagen | 1981-06-23 |
| 4270008 | 2-Propyl-pent-4-en-1-al | Jurgen Weber, Wolfgang Bernhagen | 1981-05-26 |
| 4263460 | Process for preparing methyl-nonyl-acetaldehyde | Jurgen Weber | 1981-04-21 |
| 4205013 | Process for the manufacture of 2,3-dimethylpentanal | Jurgen Weber | 1980-05-27 |