Issued Patents All Time
Showing 25 most recent of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806679 | Isomerization of diacyloxybutenes | Wolfgang Hoelderich, Rolf Fischer, Otto Hertel, Wolf D. Mross | 1989-02-21 |
| 4780448 | Preparation of a catalyst containing copper and silica | Franz J. Broecker, Rolf Fischer, Klaus-Dieter Malsch, Wolfgang Reiss, Rolf Schnabel | 1988-10-25 |
| 4618704 | Acyloxy-2-butenes and their preparation | Rolf Fischer | 1986-10-21 |
| 4599458 | Preparation of 2-methylalk-2-enals | Rolf Fischer, Wolfgang Hoelderich, Franz Merger, Wolf D. Mross | 1986-07-08 |
| 4594462 | Preparation of butane-1,4-diol | Rolf Schnabel | 1986-06-10 |
| 4562283 | Continuous separation of maleic anhydride from gaseous reaction mixtures | Rolf Schnabel | 1985-12-31 |
| 4543417 | .omega.,.omega.-Diacyloxy-2,6-dimethyl-octatrienoates and -octatrienals, their preparation and their use for the synthesis of terpene compounds | Klaus Schmieder, Joachim Paust, Rolf Fischer | 1985-09-24 |
| 4529814 | Acyloxyalkadienoates and their preparation | Rolf Fischer | 1985-07-16 |
| 4521342 | Preparation of 2-alkyl-4,4-diacyloxybut-2-enals | Rolf Fischer, Joachim Paust | 1985-06-04 |
| 4513150 | Preparation of but-2-ene-1,4-diones substituted in the 1,4-positions | Rolf Fischer, Hardo Siegel | 1985-04-23 |
| 4506096 | 2-Alkyl-2,4-diacyloxy-but-3-enals | Rolf Fischer, Joachim Paust | 1985-03-19 |
| 4504676 | Preparation of diacyloxybutenes | Rolf Schnabel, Gerd Kissau, Rolf Fischer | 1985-03-12 |
| 4480123 | Preparation of diacyloxyalkadienes | Rolf Fischer | 1984-10-30 |
| 4468525 | Preparation of diacyloxyhexadienes from hexatrienes | Rolf Fischer | 1984-08-28 |
| 4466922 | Preparation of 3-alkyl-3-acyloxy-4-hydroxybut-1-enes | Rolf Fischer | 1984-08-21 |
| 4467120 | Preparation of .alpha.,.beta.-unsaturated aldehydes and 2,7-dimethyl-octa-2,6-dienal | Rolf Fischer | 1984-08-21 |
| 4436944 | Preparation of o-xylene and ethylbenzene | Rolf Fischer, Hans H. Pohl | 1984-03-13 |
| 4410719 | Preparation of 2-alkyl-4,4-diacyloxybut-2-enals | Rolf Fischer, Joachim Paust | 1983-10-18 |
| 4394290 | Regeneration of supported catalysts containing palladium and/or platinum and tellurium | Rolf Schnabel, Rolf Fischer | 1983-07-19 |
| 4379756 | Reactivation of supported catalysts which contain palladium, copper and tellurium | Rolf Fischer | 1983-04-12 |
| 4361710 | Preparation of butane-1,4-diol | Rolf Schnabel, Rolf Platz | 1982-11-30 |
| 4310388 | Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 hydrocarbon | Klaus Volkamer, Klaus Broellos, Alfred Lindner, Ulrich Wagner, Klaus-Juergen Schneider | 1982-01-12 |
| 4287356 | Preparation of vinylglycol esters | Rolf Fischer | 1981-09-01 |
| 4284796 | Preparation of 4-acyloxy-2-methyl-crotonaldehydes | Rolf Fischer | 1981-08-18 |
| 4278504 | Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 -hydrocarbon mixture | Klaus Volkamer, Klaus Bröllos, Alfred Lindner, Ulrich Wagner, Klaus-Jurgen Schneider | 1981-07-14 |