Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6043338 | Method of producing polyoxytetramethylene glycol | Christoph Sigwart, Rolf Fischer, Karsten Eller, Rainer Becker, Klaus-Dieter Plitzko | 2000-03-28 |
| 5939590 | Tetrahydrofuran/but-2-yne-1, 4-diol copolymers containing C-C triple bonds | Christoph Sigwart, Rolf Fischer, Rainer Becker, Klaus-Dieter Plitzko, Christof Palm +1 more | 1999-08-17 |
| 5773648 | Preparation of polytetrahydrofuran | Rainer Becker, Christoph Sigwart, Michael Hesse, Rolf Fischer, Karsten Eller +1 more | 1998-06-30 |
| 4806670 | Preparation of .alpha.-substituted .beta.-dicarbonyl and .beta.-cyanocarbonyl compounds | Walter Gramlich, Klaus Halbritter | 1989-02-21 |
| 4739051 | Preparation of morpholine | Wolfgang Schroeder, Wolfgang Lengsfeld, Otto Hertel, Guenter Boettger | 1988-04-19 |
| 4684392 | Beta-triazolyl oximes agents containing them for influencing the growth of plants and their use | Costin Rentzea, Hubert Sauter, Bernd Zeeh, Johann Jung | 1987-08-04 |
| 4684743 | Preparation of alpha-substituted .beta.-dicarbonyl, .beta.-cyano-carbonyl and .beta.-dicyano compounds | Walter Gramlich, Klaus Halbritter | 1987-08-04 |
| 4532234 | Neopentyl-phenethyltriazoles, their preparation and fungicides containing these compounds | Ernst Buschmann, Guenter Schulz, Ernst-Heinrich Pommer, Eberhard Ammermann | 1985-07-30 |
| 4532337 | Preparation of 3-formyl-5,6-dihydro-2H-pyran | Heinz Eckhardt, Klaus Halbritter, Norbert Goetz | 1985-07-30 |
| 4521602 | Preparation of pyridines or pyrroles from .alpha.,.omega.-dinitriles | Walter Rebafka, Klaus Halbritter, Wolfgang Franzischka | 1985-06-04 |
| 4374274 | Preparation of .alpha.-methylsubstituted carbonyl compounds | Klaus Halbritter, Walter Gramlich | 1983-02-15 |
| 4328028 | Plant growth regulators | Costin Rentzea, Johann Jung, Hubert Sauter, Bernd Zeeh | 1982-05-04 |
| 4319055 | Process for removing formaldehyde from aqueous solutions of but-2-yne-1,4-diol | Walter Rebafka, Werner Fliege | 1982-03-09 |
| 4278800 | .gamma.-Azolyl compounds, agents containing them for regulating plant growth, and the manufacture thereof | Costin Rentzea, Hubert Sauter, Eberhard Ammermann, Johann Jung | 1981-07-14 |
| 4273945 | Preparation of saturated aliphatic, cycloaliphatic and araliphatic aldehydes | Axel Nissen, Wolfgang Koernig, Michael Horner, Werner Fliege, Guenter Boettger | 1981-06-16 |
| 4270006 | Preparation of aliphatic carbonyl compounds | Axel Nissen, Otto Woerz | 1981-05-26 |
| 4212825 | Aldol condensation and hydrogenation process using a catalyst of nickel and cobalt together with zinc oxide and another metal of groups VIII, IIb, IIIa, IVa and Va of the periodic table | Axel Nissen, Ekkehard Sapper, Werner Fliege, Arnold Wittwer | 1980-07-15 |