Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616771 | Preparation of aryl chloroformates | Thomas Wettling | 1997-04-01 |
| 5359082 | Preparation of 4-substituted imidazoles from N-formyl-.alpha.-aminonitrile | Ulrich Koehler, Horst Neuhauser, Hardo Siegel, Michael Kroener | 1994-10-25 |
| 5200163 | Removal of phosgene from off-gases | Jochem Henkelmann, Irene Troetsch-Schaller, Leopold Hupfer, Wolfgang Franzischka, Wolfgang Schwarz | 1993-04-06 |
| 5200560 | Preparation of carboxylic chlorides | Jochem Henkelmann, Leopold Hupfer, Wolfgang Franzischka, Wolfgang Schwarz | 1993-04-06 |
| 5196611 | Preparation of alkyl, alkenyl, and alkynyl chlorides | Jochem Henkelmann, Irene Troetsch-Schaller, Thomas Wettling, Leopold Hupfer, Wolfgang Franzischka +1 more | 1993-03-23 |
| 4950756 | Preparation of 1-nitroanthraquinone-2-carboxylic acid | Jochem Henkelmann, Helmut Hoch, Gerhard Kilpper, Walter Maier | 1990-08-21 |