Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5087775 | Process for the preparation of partially fluorinated alcohols | Karl-Rudolf Gassen, Dietmar Bielefeldt, Heinz Ziemann | 1992-02-11 |
| 5024694 | Herbicidal N-aryl nitrogen heterocycles having fluorine-containing substituents | Otto Schallner, Hans-Joachim Santel, Klaus Lurssen, Robert R. Schmidt, Birgit Krauskopf | 1991-06-18 |
| 4990633 | Fluorinated bisaryloxy-substituted alkenes, process for their preparation and their use | Dietmar Beilefeldt, Thomas Himmler, Albrecht Marhold | 1991-02-05 |
| 4954666 | Process for preparing fluorinated C.sub.4 to C.sub.6 hydrocarbons and novel cyclic fluorinated hydrocarbons and their use as propellant gas and working fluid for heat pump systems | Dietmar Bielefeldt, Albrecht Marhold | 1990-09-04 |
| 4931482 | Use of 1,1,1,4,4,4-hexaefluorobutane as a blowing and insulating gas for the production of foam plastics | Wilhelm Lamberts, Klaus-Dieter Sommerfeld, Dietmar Bielefeldt, Albrecht Marhold | 1990-06-05 |
| 4902839 | Process for preparing fluorinated C.sub.4 to C.sub.6 hydrocarbons and novel cyclic fluorinated hydrocarbons and their use as propellant gas and working fluid for heat pump systems | Dietmar Bielefeldt, Albrecht Marhold | 1990-02-20 |