Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6437198 | Method for producing alkali metal alcoholates | Holger Friedrich, Josef Guth, Thomas Letzelter, Hans-Jürgen Bender | 2002-08-20 |
| 6281392 | Preparation of orthoesters | Kirsten Burkart, Josef Guth, Thomas Letzelter, Hans-Josef Sterzel | 2001-08-28 |
| 5866737 | Oxidation and oxydehydrogenation of hydrocarbons in the fluidized bed | Alfred Hagemeyer, Otto Watzenberger | 1999-02-02 |
| 5703135 | Production of expanded polyolefin beads | Joachim Fischer, Isidoor De Grave, Wolfram Kogel | 1997-12-30 |