Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7497972 | Plastic molded body containing a fluorescent dye | Hans Lichtenstein, Eduard Albrecht | 2009-03-03 |
| 7052161 | Illuminative device | Hans Lichtenstein, Jann Schmidt, Eduard Albrecht | 2006-05-30 |
| 7046903 | Light-guide body and process for its production | Jann Schmidt, Hans Lichtenstein, Herbert Groothues | 2006-05-16 |
| 6716950 | Material for solar benches | Sabine Servaty, Rolf Neeb | 2004-04-06 |
| 6624226 | Molded plastic parts made of casting resins and inorganic fillers, presenting improved mechanical and thermal properties and improved flame-resistance | Sabine Servaty | 2003-09-23 |
| 5756211 | Method of manufacturing high filler content plastics having a glitter appearance | Manfred Krieg | 1998-05-26 |
| 5690872 | Method for the production of highly filled polymethyl methacrylate based plastics | Manfred Krieg | 1997-11-25 |
| 5464898 | Suspensions for producing filled cast resins | Manfred Krieg | 1995-11-07 |
| 5449727 | Acrylate resins as binders for color concentrates | Manfred Krieg, Hans Lichtenstein, Ludwig Hosch | 1995-09-12 |
| 5266253 | Method of manufacturing molded polymer articles containing highly filled casting resins and having color differentiated surface regions | Okko K. Dijkhuizen, Manfred Krieg | 1993-11-30 |
| 4957987 | Acrylate resins as binders for color concentrates | Manfred Krieg, Hans Lichtenstein, Ludwig Hosch | 1990-09-18 |
| 4826901 | Curable casting resins | Manfred Krieg | 1989-05-02 |
| 4786660 | Method for making curable casting resins | Manfred Krieg | 1988-11-22 |
| 4773913 | Acrylate resins as binders for color concentrates | Manfred Krieg, Hans Lichtenstein, Ludwig Hosch | 1988-09-27 |
| 4381136 | Method for covering ultraviolet sources | Ludwig Hosch | 1983-04-26 |