Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9606560 | Computer system, arrangement for remote maintenance and remote maintenance method | Friedrich Lederer, Immanuel Köhn | 2017-03-28 |
| 8002876 | Method and apparatus for electrostatically charging and separating particles that are difficult to separate | — | 2011-08-23 |
| 6941048 | Optical fiber transmission link having passive, directionally dependent attenuation | Wolfgang Dultz, Volker Maier, Jörg Happ | 2005-09-06 |
| 6527985 | Method for producing gradient index refraction index profiles in polymer optical fibers | Juergen Kaufhold, Olaf Ziemann | 2003-03-04 |
| 6004376 | Method for the electrical charging and separation of particles that are difficult to separate from a gas flow | — | 1999-12-21 |
| 5957448 | Device and process for intermediate stacking of items | Holger Schererz, Gerhard Obier | 1999-09-28 |
| 5941521 | Device for radially deflecting consignments in transport plants | Peter Enenkel, Bernd Bulle | 1999-08-24 |
| 5923801 | Optical branching element | Angelika Stelmaszyk, Hans Strack | 1999-07-13 |
| 5584649 | Separating device | — | 1996-12-17 |
| 5472310 | Separating device | — | 1995-12-05 |
| 5449166 | Apparatus for reversing the direction of flat items | Boris Lohmann, Armin Zimmermann | 1995-09-12 |
| 5353903 | Transfer bridge for letter sorting systems | Otmar Kechel, Dieter Altenburg, Armin Zimmermann | 1994-10-11 |
| 4718575 | Apparatus for ascertaining the level of flowable material in dust separators and the like | Rolf Becker | 1988-01-12 |
| 4691913 | Separating apparatus for flat objects | — | 1987-09-08 |
| 4657241 | Distribution line for flat objects and particularly for letters | — | 1987-04-14 |
| 4634111 | Friction separation device | — | 1987-01-06 |
| 4522634 | Method and apparatus for automatic regulation of the operation of an electrostatic filter | — | 1985-06-11 |
| 4302000 | Apparatus for separating a letter stack | — | 1981-11-24 |