Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847425 | Prepartion of 4-isopropylcyclohexylmethanol and its alkyl ethers | Dieter Degner, Wolfgang Lengsfeld, Ludwig Schuster | 1989-07-11 |
| 4837201 | 4-Methyl-4-phenyl-1-pentanals, their preparation and their use as scents | Norbert Goetz, Hardo Siegel, Gerhard Schindler | 1989-06-06 |
| 4831166 | Preparation of alpha-substituted upsilon-butyrolactones | Heinz Eckhardt, Walter F. Best, Klaus Halbritter | 1989-05-16 |
| 4820389 | Novel benzaldehyde dialkyl acetals and preparation and use thereof | Dieter Degner, Franz Lanzendoerfer, Hardo Siegel | 1989-04-11 |
| 4814510 | Novel benzaldehyde derivatives, their preparation, and their use | Dieter Degner, Heinz Hannebaum | 1989-03-21 |
| 4806670 | Preparation of .alpha.-substituted .beta.-dicarbonyl and .beta.-cyanocarbonyl compounds | Klaus Halbritter, Gerd Heilen | 1989-02-21 |