Issued Patents 2002
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6482964 | Process for the preparation of &bgr;-isophorone epoxide | Klaus Huthmacher, Alexander Moller | 2002-11-19 |
| 6469215 | Process for the production of an intermediate mixture of &bgr;-isophorone epoxide and its isomer 4-hydroxyisophorone (HIP) | Klaus Huthmacher, Sylvain Perrin | 2002-10-22 |
| 6441199 | Process for the production of &agr;-tocopherol acetate by condensation of trimethylhydroquinone with isophytol with recycling of an acetic catalyst solution | Stepahn Kretz, Klaus Huthmacher | 2002-08-27 |
| 6420609 | Process for the production of 2,2,6-trimethylcyclohexane-1,4-dione | Klaus Huthmacher, Sylvain Perrin | 2002-07-16 |
| 6417409 | Process for the production of 2,3,5-trimethylhydroquinone diesters | Klaus Huthmacher | 2002-07-09 |
| 6417406 | Process for the production of 6-methyl heptanone | Klaus Huthmacher | 2002-07-09 |
| 6410798 | Process for the preparation of 2,3,5-trimethy1-p-Benzoquinone | Ralf Maassen, Klaus Huthmacher | 2002-06-25 |
| 6380437 | Process for the preparation of unsaturated 4,5-allene ketones, 3,5-diene ketones and the corresponding saturated ketones | Nongyuan Shi, Frank Hubner, Bernd Drapal, Rainer Peter, Klaus Huthmacher +1 more | 2002-04-30 |
| 6350897 | Process for preparing trimethylhydroquinone diacetate and trimethylhydroquinone | Klaus Huthmacher | 2002-02-26 |