Issued Patents All Time
Showing 76–87 of 87 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6252115 | Method for separating an imine from a mixture containing an amine and an imine | Peter Bassler, Alwin Rehfinger | 2001-06-26 |
| 6207851 | Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine | Guido Voit, Peter Bassler, Alwin Rehfinger, Rolf Fischer | 2001-03-27 |
| 6204408 | Method for separating 6-aminocapronitrile from mixtures containing 6-aminocapronitrile and an imine | Peter Bassler, Alwin Rehfinger, Harald Rust | 2001-03-20 |
| 6169199 | Method for separating 6-aminocaproic acid nitrile from mixtures containing 6-aminocaproic acid nitrile and an imine | Alwin Rehfinger | 2001-01-02 |
| 6147208 | Process for simultaneously preparing caprolactam and hexamethylene diamine | Gunther Achhammer, Peter Bassler, Rolf Fischer, Eberhard Fuchs, Werner Schnurr +2 more | 2000-11-14 |
| 6147247 | Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine | Guido Voit, Klemens Flick, Alwan Rehfinger, Peter Bassler | 2000-11-14 |
| 6139693 | Method for obtaining hexamethylene diamine from mixtures containing hexamethylene diamine | Peter Bassler, Rolf Fischer, Alwin Rehfinger, Guido Voit | 2000-10-31 |
| 6022999 | Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine having a cis/trans isomer ratio of at least 70:30 | Guido Voit, Tom Witzel, Boris Breitscheidel, Karl-Heinz Ross, Peter Wahl | 2000-02-08 |
| 5756845 | Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine | Guido Voit, Tom Witzel, Boris Breitscheidel, Wolfgang Harder, Axel Paul +2 more | 1998-05-26 |
| 5717090 | Simultaneous preparation of caprolactam and hexamethylenediamine | Peter Bassler, Gunther Achhammer, Tom Witzel, Eberhard Fuchs, Rolf Fischer +1 more | 1998-02-10 |
| 5496941 | Process for continuous purification of crude caprolactam prepared from 6-aminocapronitrile | Josef Ritz, Rolf Fischer, Werner Schnurr, Gu/ nther Achhammer, Eberhard Fuchs | 1996-03-05 |
| 4982018 | Removal of cyclohexanol from aqueous solutions containing it and aromatic sulfonic acids | Hans-Juergen Gosch, Rolf Fischer | 1991-01-01 |