Issued Patents All Time
Showing 51–75 of 96 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7057807 | Microscope | — | 2006-06-06 |
| 7002738 | Stereomicroscope with a co-observer tube | Max Sturgis | 2006-02-21 |
| 6982825 | Stereomicroscope | — | 2006-01-03 |
| 6975451 | Illumination incoupling system for an optical viewing device | — | 2005-12-13 |
| 6972900 | Microscope, particularly a stereomicroscope | — | 2005-12-06 |
| 6914721 | Prism construction for simultaneous zero-degree and oblique illumination of a stereoscopic surgical microscope | Jacques Deverin | 2005-07-05 |
| 6909499 | Light source for illumination in an optical viewing device | — | 2005-06-21 |
| 6883952 | Apparatus for illuminating a viewing field by two light sources | — | 2005-04-26 |
| 6853494 | Zoom system | Thomas Pozivil | 2005-02-08 |
| 6714347 | Microscope with a region of modifiable length | Juergen Pensel | 2004-03-30 |
| 6592086 | Microscope stand having X-Y-Z adjustment unit | — | 2003-07-15 |
| 6543914 | Stand arrangement | — | 2003-04-08 |
| 6421173 | Stereomicroscope | Dennis Corbisiero, Ohm Savanayana, Heinz Suhner | 2002-07-16 |
| 6377397 | Illumination device for a surgical microscope | Juergen Pensel | 2002-04-23 |
| 5856883 | Illuminating device for an operation microscope with optically-mechanically coupled observer tubes | — | 1999-01-05 |
| 5766443 | Process of preparing solutions of alkali peroxide and percarbonate | Eilhard Hillrichs | 1998-06-16 |
| 5762991 | Continous process of producing beer | Klaus Dziondziak, Rudolf Bönsch, Roland Bodmer, Michael Eichelsbacher, Peter Mitschke +1 more | 1998-06-09 |
| 5759826 | Process of preparing an organic acid | Bernd Ahlers, Rudolf Bönsch, Michael Eichelsbacher, Jurgen Kuhn, Jiri Pendl +2 more | 1998-06-02 |
| 5702585 | Process of preparing alkali peroxide solutions | Eilhard Hillrichs, Manfred Kienberger | 1997-12-30 |
| 5612816 | Endoscopic attachment for a stereoscopic viewing system | Fritz Strahle, Uwe Vry | 1997-03-18 |
| 5537248 | Accessory module for a stereo microscope | — | 1996-07-16 |
| 5530587 | Stereomicroscope with adjustable objective and prismatic cubes | Ulrich Lemcke | 1996-06-25 |
| 5496261 | Combination of a viewing and/or documenting apparatus and an endoscope as well as a method of operating the combination | — | 1996-03-05 |
| 5321447 | Ophthalmoscopic attachment for a surgical microscope | Fritz Strahle, Jürgen Liegel | 1994-06-14 |
| 5308465 | Membrane for a gas diffusion electrode, process of manufacturing the membrane, and gas diffusion electrode provided with the membrane | Eilhard Hillrichs | 1994-05-03 |