Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5209832 | Process for the preparation of metal complex dyes | Gerhard Beck | 1993-05-11 |
| D333313 | Magnifying glass | Joachim Hornschu, Volker Donn | 1993-02-16 |
| 5153140 | Process for controlling and optimising industrial processes for the preparation of dyes, fluorescent whitening agents and their intermediates | Horst Langfeld, Roland Minges, Claudio Puebla | 1992-10-06 |
| 5011587 | Apparatus for the detection of chemical equalization processes in an aqueous solution | — | 1991-04-30 |
| 4673249 | Drive for a prismatic compensator | Horst Schneider, Erwin J. Daniels | 1987-06-16 |
| 4529264 | Device for sharp-edge illumination of an observation field lying in a preselectable plane | Karl Grunvogel, Lothar Rubl | 1985-07-16 |
| 4353424 | Slash gathering vehicle | Ray B. Schenck | 1982-10-12 |
| 4264121 | Binocular telescope | Karl Grunvogel | 1981-04-28 |
| 4264122 | Binocular observation instrument | Karl Grunvogel | 1981-04-28 |
| 4182791 | Process for making a composite body | Otto Meyering | 1980-01-08 |