Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5393506 | Method for the manufacturing of alkali monofluorophosphate | Hans-Walter Swidersky, Ulrich Hartmann, Frank Moewius, Veronika Radonz, Manfred Meisel | 1995-02-28 |
| 5382721 | Process for the preparation of 1,1,1,2-tetrafluoroethane | Pascal Pennetreau, Francine Janssens, Max Braun, Johannes Eicher, Eckhard Hausmann | 1995-01-17 |
| 5362469 | Preparation of ultrapure hydrogen fluoride | Ulrich Seseke-Koyro, Andreas Grossmann | 1994-11-08 |
| 5356611 | Method of recovering iodine | Ralf Herkelmann, Dirk Seffer | 1994-10-18 |
| 5336817 | Method of preparing 1,1,1,2-tetrafluoroethane | Johannes Eicher, Karl-Heinz Fazniewscy, Matthias Rieland | 1994-08-09 |
| 5315046 | Process for preparing ethane derivatives | Guenter Fernschild, deceased, Carsten Brosch | 1994-05-24 |
| 5300709 | Process for working up a hydrogen fluoride phase from a fluorination reaction mixture | Johannes Eicher, Bernhard Schulte | 1994-04-05 |
| 5283381 | Process for preparing fluorine-containing ethane derivatives | Johannes Eicher, Karl-Heinz Fazniewscy | 1994-02-01 |
| 5227546 | Process for preparing fluorine-containing ethane derivatives | Johannes Eicher, Karl-Heinz Fazniewscy, Hans-Walter Swidersky | 1993-07-13 |
| 5214223 | Method of preparing fluorine-containing ethane derivatives | Johannes Eicher, Karlheinz Fazniewscy, Hans-Walter Swidersky | 1993-05-25 |
| 5171900 | Method of preparing fluorine-containing ethane derivatives | Johannes Eicher, Karlheinz Fazniewscy, Hans-Walter Swidersky | 1992-12-15 |
| 4922041 | Method for producing CF.sub.3 I | Dieter Naumann, Wieland Tyrra, Birgit Kock, Bernd Wilkes | 1990-05-01 |
| 4900867 | Process for producing fluorosulfonamides | Bernd Wilkes, Dieter Naumann, Ruediger Sander | 1990-02-13 |
| 4746463 | Process for producing novel products by hydrogen fluoride with esters of fatty acids | Heinz-Rudi Feist, Hans Buchwald, Boleslaus Raschkowski | 1988-05-24 |
| 4694112 | Process for producing 2,2,2-trifluoroethanol | Heinrich Willenberg, Wilhelm Pohlmeyer | 1987-09-15 |
| 4659493 | Process for producing novel products by hydrogen fluoride with esters of fatty acids | Heinz-Rudi Feist, Hans Buchwald, Boleslaus Raschkowski | 1987-04-21 |
| 4442676 | Process for improving the thermal stability of fluoro-chloro-hydrocarbon | Guenter Fernschild, deceased | 1984-04-17 |
| 4382897 | Process for the preparation of trifluoracetic acid derivatives | Guenter Fernschild, deceased | 1983-05-10 |
| 4359371 | Process for preparing bromine- and fluorine-containing halogenated hydrocarbons | Horst Bohm, Joachim Massonne | 1982-11-16 |