Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5189182 | Preparation of 5-methylbutyrolactone | Rudolf Kummer, Heinz-Walter Schneider, Werner Bertleff, Rolf Fischer, Uwe Vagt +2 more | 1993-02-23 |
| 5144061 | Preparation of alkenecarboxylic esters | Wolfgang Hoelderich, Rolf Fischer | 1992-09-01 |
| 5008461 | Preparation of benzyl ketones | Eckhard Hickmann | 1991-04-16 |
| 5002639 | Separation of ortho-, meta- and para-tolunitrile from ternary mixtures of the isomers | Werner Steck, Harald Rust, Helmut Lermer | 1991-03-26 |
| 4933487 | Preparation of 4-pentenates | Wolfgang Hoelderich, Heinrich Aichinger, Rolf Fischer | 1990-06-12 |
| 4879405 | Preparation of pentenoic esters | Wolfgang Hoelderich, Franz Merger | 1989-11-07 |