Issued Patents All Time
Showing 1–25 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6288293 | Process for the preparation of 1,1,1,2-tetrafluoroethane | Wolfgang Wanzke, Wilfried Schmieder | 2001-09-11 |
| 5969199 | Process for the addition of HF to halogenated alkenes | Raimund Franz | 1999-10-19 |
| 5847245 | Process for the addition of HF to halogenated alkenes | Raimund Franz | 1998-12-08 |
| 5739070 | Process for regenerating a fluorination catalyst | Frank Ebmeyer, Ralf Finzel, Wolfgang Wanzke | 1998-04-14 |
| 5728884 | Process for the work-up of complex amine hydrofluroides | Ulrich Hahn, Raimund Franz | 1998-03-17 |
| 5684193 | Process for the preparation of perfluoropropionyl fluoride | Raimund Franz | 1997-11-04 |
| 5672748 | Process for preparing trifluoroacetyl fluoride | Frank Ebmeyer, Tobias Metzenthin | 1997-09-30 |
| 5659078 | Process for the preparation of trichloroacetyl chloride | Frank Ebmeyer, Tobias Metzenthin | 1997-08-19 |
| 5534634 | Process for preparing trifluoroethyl sulfur compounds from thiolates and 1-chloro-2,2,2-trifluoroethane | Wolfgang Appel, Frank Ebmeyer, Tobias Metzenthin | 1996-07-09 |
| 5471002 | Process for preparing trifluoromethylanilines | Wolfgang Appel | 1995-11-28 |
| 5399795 | Process for the preparation of 2-H-heptafluoropropane | Raimund Franz | 1995-03-21 |
| 5319131 | .alpha.-fluoroacrylic acid esters and polymers thereof | Rudolf Heumuller, Werner Groh, Gerhard Wieners, Peter Herbrechtsmeier | 1994-06-07 |
| 5288908 | Process for the preparation of fluorine containing monomers | Jurgen Lau, Freimund Rohrscheid | 1994-02-22 |
| 5274126 | Partially fluorinated tetracarboxylic acid and the dianhydride thereof, a process for their preparation and their use | Freimund Rohrscheid, Wolfgang Appel | 1993-12-28 |
| 5266668 | Substituted phenyl .alpha.-fluoroacrylates | Rudolf Heumuller, Peter Herbrechtsmeier, Werner Groh | 1993-11-30 |
| 5254771 | Process for the preparation of 1,1,1-trifluoro-2-2-dichloroethane under elevated pressure | Hans R. Cremer, Wilhelm Lendle | 1993-10-19 |
| 5202469 | Partially fluorinated dicarboxylic acid and the acid chloride thereof, and a process for their preparation | Freimund Rohrscheid, Wolfgang Appel | 1993-04-13 |
| 5198925 | .alpha.-fluoroacrylic acid esters and polymers thereof | Rudolf Heumuller, Werner Groh, Gerhard Wieners, Peter Herbrechtsmeier | 1993-03-30 |
| 5157172 | Process for the preparation of 1,1,1-Trifluoro-2-chloroethane | Wolfgang Wanzke, Thomas Muller | 1992-10-20 |
| 5153334 | Partially fluorinated tetracarboxylic acid and the dianhydride thereof | Freimund Rohrscheid, Wolfgang Appel | 1992-10-06 |
| 5118874 | Partially fluorinated biphenyls, processes for their preparation and their use | Wolfgang Appel | 1992-06-02 |
| 5110983 | Hexafluoroisopropyl-containing monomers, process for their preparation and their use | Jurgen Lau, Freimund Rohrscheid | 1992-05-05 |
| 5087748 | Process for the continuous oligomerization of hexafluoropropene oxide | Manfred Finke, Heinz Strutz | 1992-02-11 |
| 5081315 | Fluoro-containing compounds based on 4,4'-bis[2-(4-hydroxyphenyl) hexafluoroisopropyl]diphenyl ether, processes for their preparation and their use | Jurgen Lau | 1992-01-14 |
| 5028728 | Process for the preparation of reaction products of 2,2-bis-(4-hydroxphenyl)-hexafluoropropane and new derivatives of this type | Klaus Schneider | 1991-07-02 |