Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215433 | Axial fan | Heinz Weiland, Helmut Fuchs, Ulrich Ackermann, Andreas Johannes Maria Jacobs | 1993-06-01 |
| 4979823 | Method and arrangement for background compensation in material analysis | Felix Kerstan | 1990-12-25 |
| 4900149 | Method for the simultaneous analysis of several elements | Holger Gerecke | 1990-02-13 |
| 4759598 | Apparatus for the positioning of ends of flexible light-conducting elements | Helmut Becker-Ross, Karl Brueckner, Hans Fischer, Guenther Moebius, Winfried Quillfeldt | 1988-07-26 |
| 4690559 | Optical system for spectral analysis devices | Stefan Florek, Helmut Becker-Ross, Hans-Jürgen Dobschal | 1987-09-01 |
| 4289401 | Optical system for spectral devices | — | 1981-09-15 |