Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5744638 | Process for the preparation of haloanthranilic acids | Horst Schmand, Bernd Kellermeier, Hans-Jurgen Schmidt | 1998-04-28 |
| 5531799 | Ceramic corundum abrasive | Eckhard Wagner, Günter Becker | 1996-07-02 |
| 5430202 | Process for the preparation of substantially fluorinated alkyl bromides | Andreas Winterfeldt, Reinhard Knieps | 1995-07-04 |
| 5336818 | Process for the preparation of substantially fluorinated alkyl bromides | Andreas Winterfeldt, Reinhard Knieps | 1994-08-09 |
| 5244476 | Benzophenone ether esters, processes for their preparation, and their use for improving the light stability of polyester dyeings | Joachim Schulz | 1993-09-14 |
| 5034360 | Process for the production of a ceramic polycrystalline abrasive | Günter Becker, Eckhard Wagner | 1991-07-23 |
| 4960920 | Process for the preparation of .alpha.-aminoalkylphosphonic acids and of .alpha.-aminoalkylphosphinic acids | — | 1990-10-02 |
| 4948918 | Process for the preparation of .alpha.-aminoalkylphosphonic acids | Hans-Jerg Kleiner | 1990-08-14 |
| 4847391 | Process for preparing 2-(3-bromopropyl)-5,5-dimethyl-1,3-dioxane and 2-(4-bromobutyl-5,5-dimethyl-1,3-dioxane | — | 1989-07-11 |
| 4429052 | Magnetic hexagonal ferrite layer on a nonmagnetic hexagonal mixed crystal substrate | Dieter Mateika | 1984-01-31 |
| 4355072 | Magnetic hexagonal ferrite layer on a nonmagnetic hexagonal mixed crystal substrate | Dieter Mateika | 1982-10-19 |