Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7041363 | Solid body with microstructured surface | Christoph Krohmer, Norbert Brand | 2006-05-09 |
| 6773255 | Plastic composites made from incompatible plastics | Volker Benz, Michael Meier-Kaiser, Michael Muller, Klaus E. Pohlmann | 2004-08-10 |
| 6424406 | Optical diffuser plates | Michael Mueller, Volker Benz, Michael Meier-Kaiser, Volker Mende, Helmut Haring +1 more | 2002-07-23 |
| 6280671 | Process for preparing multilayer plastic composites of incompatible plastics | Volker Benz, Michael Meier-Kaiser, Michael Mueller, Klaus-Ernst Poehlmann | 2001-08-28 |
| 5870233 | Process for manufacture of fresnel lenses | Volker Benz, Martin Berkenkopf, Udo Fischer, Michael Meier-Kaiser | 1999-02-09 |
| 5656209 | Process for manufacture of Fresnel lenses | Volker Benz, Martin Berkenkopf, Udo Fischer, Michael Meier-Kaiser | 1997-08-12 |
| 5587200 | Method for manufacturing a medical electrode | Bernd Straehler, Ulf Lindegren | 1996-12-24 |
| 5523168 | Transparent composite plate system | Werner Siol, Klaus Koralweski, Michael Meier-Kaiser | 1996-06-04 |
| 5425211 | Wall component and wall formed therefrom | — | 1995-06-20 |
| 5273420 | Extrusion die for thermoplastic webs | Heinz Gross, Karl Funk | 1993-12-28 |
| 5230955 | Plastic sheet or plate with flameproofing means | Otto Diroll, Klaus Hofmann, Uwe Jacobsen, Gunther Schreyer, Peter R. Szigeti +4 more | 1993-07-27 |
| 5100701 | Solder-repelling coating for tools | Helmut Freller, Friedrich Horauf, Peter Schack | 1992-03-31 |
| 5066435 | Process and system for producing multi-layer extrudate | Heinz Gross, Roland Schuchmann, Helmut Haring | 1991-11-19 |
| 4990079 | Extrusion slot die with flexible lip | — | 1991-02-05 |
| 4719054 | Process for the production of 17.alpha.-ethynyl-17.beta.-hydroxy-18-methyl-4,15-estradien-3-one, and novel 3,5-estradien-17-one starting compounds for this process | Helmut Hofmeister, Henry Laurent, Rudolf Wiechert | 1988-01-12 |
| 4508430 | Electrochromic display cell I | Helmut Freller, Friedrich Horauf, Konrad Mund | 1985-04-02 |
| 4379790 | (Erolinyl)-N,N-diethylurea derivatives, and their preparation and use | Reinhard Horowski, Wolfgang Kehr, Gerhard Sauer, Ulrich Eder | 1983-04-12 |
| 4352042 | Luminescent screens for flat image display devices | Rolf Wengert | 1982-09-28 |
| 4325002 | Luminescent screen for flat image display devices | Manfred Kobale, Kaspar Weingand, Rolf Wengert | 1982-04-13 |
| 4243735 | Method of producing light-absorbing edging about phosphor dots on color image screens | Manfred Kobale, Rolf Wengert | 1981-01-06 |