Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5130356 | Molding for optical purposes | Carola Hedtmann-Rein, Ludger Leber | 1992-07-14 |
| 4966798 | Optical recording medium | Sibylle Brosius, Helmut Barzynski, Wolfgang Schrott, Bernhard Albert, Michael Acker +3 more | 1990-10-30 |
| 4411752 | Preparation of 1-monochloroethylcarbamyl chloride | Karl-Heinz Koenig | 1983-10-25 |
| 4399256 | Surface-coating binders containing blocked isocyanate groups, and their use in cathodic electrocoating | Jurgen Gimpel, Hans-Uwe Schenck | 1983-08-16 |
| 4385925 | 1,3-Dioxan-5-yl-alkyltriazoles, their preparation, their use for regulating plant growth, and regulators containing these compounds | Costin Rentzea, Bernd Zeeh, Johann Jung | 1983-05-31 |
| 4376776 | Dibenzofuran derivatives and their use for controlling fungi | Costin Rentzea, Bernd Zeeh, Hubert Sauter, Ernst-Heinrich Pommer | 1983-03-15 |
| 4368066 | 1,3-Dioxan-5-yl-alkenyltriazoles, their preparation, their uses in regulating plant growth, and regulators containing these compounds | Costin Rentzea, Bernd Zeeh, Johann Jung | 1983-01-11 |
| 4344891 | Halogenated tertiary alkyl isocyanates and their preparation | Karl-Heinz Koenig, Volker Schwendemann | 1982-08-17 |
| 4336346 | Copolymers containing blocked isocyanate groups, and their use in anodic electrocoating | Juergen Gimpel, Hans-Uwe Schenck | 1982-06-22 |
| 4314948 | Preparation of mixtures of 1-monohalogenated isocyanates and 1,2-unsaturated isocyanates | Karl-Heinz Koenig, Heinz-Guenter Oeser | 1982-02-09 |
| 4297300 | Novel .alpha.-haloalkylcarbamic acid halides, and a process for the preparation of .alpha.-haloalkylcarbamic acid halides | Karl-Heinz Koenig | 1981-10-27 |
| 4294773 | Preparation of 1-haloalkyl isocyanates and 1-alkenyl isocyanates | Karl-Heinz Koenig, Heinz-Guenter Oeser | 1981-10-13 |
| 4257974 | Process for the preparation of .alpha.,.beta.-dihaloalkyl isocyanates | Karl-Heinz Koenig, Heinz-Guenter Oeser | 1981-03-24 |