Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8092731 | Method for producing a thermoplastic plastic film, film and use thereof | Claude Guenanten, Christoph Steinfels, Herbert Groothues, Christoph Krohmer, Helmut Haering +3 more | 2012-01-10 |
| 7128464 | Method and device for regulating pressure in a single-screw degassing extruder or in a cascade extruder | Bernhard Schaefer | 2006-10-31 |
| 7005180 | Optically isotrophic polycarbonate films and a method for the production thereof | Uwe Numrich, Klaus Hofmann, Roger Hugh Emerson, Thomas Pfaff | 2006-02-28 |
| 6872798 | Polycarbonate composite material which can be thermoplastically shaped, methods for the production thereof, use of the same and a flame-proof polycarbonate moulded part | Detlef Bumann, Andreas Fetzer | 2005-03-29 |
| 6773255 | Plastic composites made from incompatible plastics | Volker Benz, Hans Lorenz, Michael Muller, Klaus E. Pohlmann | 2004-08-10 |
| 6692824 | Infrared-reflecting bodies | Volker Benz, Wolfgang Scharnke, Michael Muller | 2004-02-17 |
| 6680022 | Apparatus for the calibration of hollow chamber sheet extruded lines | — | 2004-01-20 |
| 6613264 | Optically isotropic polycarbonate films and a method for the production thereof | Uwe Numrich, Klaus Hofmann, Roger Hugh Emerson, Thomas Pfaff | 2003-09-02 |
| 6424406 | Optical diffuser plates | Michael Mueller, Volker Benz, Hans Lorenz, Volker Mende, Helmut Haring +1 more | 2002-07-23 |
| 6368098 | Apparatus for the calibration of hollow chamber sheet extruded lines | — | 2002-04-09 |
| 6280671 | Process for preparing multilayer plastic composites of incompatible plastics | Volker Benz, Hans Lorenz, Michael Mueller, Klaus-Ernst Poehlmann | 2001-08-28 |
| 5980098 | Extrusion system and process for minimizing color change times in extrusion of thermoplastics | — | 1999-11-09 |
| 5870233 | Process for manufacture of fresnel lenses | Volker Benz, Martin Berkenkopf, Udo Fischer, Hans Lorenz | 1999-02-09 |
| 5656209 | Process for manufacture of Fresnel lenses | Volker Benz, Martin Berkenkopf, Udo Fischer, Hans Lorenz | 1997-08-12 |
| 5639404 | Method and apparatus for preparing thermoplastic sheets, films, and plates | Horst Greb | 1997-06-17 |
| 5637408 | Thermoplastic multilayer composite having a good adhesion between layers | Georg Oenbrink, Stefan Rober | 1997-06-10 |
| 5542836 | Device for extruding and smoothing plastic films | Heinz Gross | 1996-08-06 |
| 5523168 | Transparent composite plate system | Werner Siol, Klaus Koralweski, Hans Lorenz | 1996-06-04 |