Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6005122 | Preparation of .alpha.-tocopherol or .alpha.-tocopheryl acetate by reacting trimethylhydroquinone and phytol or isophytol, with recycling of the zinc halide condensation catalyst | Kai-Uwe Baldenius, Wulf Kaiser, Bernhard Bockstiegel, Harald Laas, Bernhard Schulz +1 more | 1999-12-21 |
| 4392984 | Olefin oligomerization catalysts and a process for their preparation | Heinz Engelbach, Werner Steigleiter | 1983-07-12 |
| 4192807 | Manufacture of .gamma.-butyrolactone from maleic anhydride | Franz J. Broecker, Gerd Duembgen, Ernest Miesen, Matthias Schwarzmann | 1980-03-11 |