Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5817266 | Dewatering of water-moist graft rubber | Norbert Güntherberg, Jurgen Hofmann, Hilmar Ohlig, Elmar Mailahn, Hermann Gausepohl +2 more | 1998-10-06 |
| 5773651 | Process for the preparation of fluorine-containing chemical compounds | Ralf Pfirmann | 1998-06-30 |
| 5475053 | Molding composition having a matt surface | Norbert Niessner, Wolfgang Fischer, Norbert Guentherberg, Karl Ruppmich, Rainer Moors +1 more | 1995-12-12 |
| 5446094 | Thermoplastic coupling agent mixture | Martin Weber, Andreas Jung, Norbert Guentherberg | 1995-08-29 |
| 5444123 | Halogen-free flameproofed thermoplastic molding materials based on polyphenylene ethers and polystyrene | Doris Zeltner, Norbert Niessner, Ranier Neumann, Stefan Seelert | 1995-08-22 |
| 5399620 | Block copolymers of acrylate and methacrylate units | Norbert Niessner | 1995-03-21 |
| 5344877 | Molding material from a particulate graft polymer | Wolfgang Fischer, Norbert Guentherberg, Norbert Niessner, Karl Ruppmich | 1994-09-06 |
| 5342898 | Particulate graft polymer, and thermoplastic molding material produced therefrom having improved toughness | Karl Ruppmich, Norbert Guentherberg, Norbert Niessner | 1994-08-30 |
| 5336718 | Impact modifier and molding material containing it | Norbert Niessner, Wolfgang Fischer, Norbert Guentherberg, Karl Ruppmich | 1994-08-09 |
| 5276256 | Flameproofed chlorine-and bromine-free molding composition | Norbert Niessner, Rainer Neumann, Karl Ruppmich, Doris Zeltner | 1994-01-04 |
| 5266638 | Toughened thermoplastic molding material | Norbert Niessner, Klaus Muehlbach | 1993-11-30 |
| 5252666 | Particulate graft polymer with improved adhesion between grafting base and graft sheath | Karl Ruppmich, Josef Schwaab | 1993-10-12 |
| 5219907 | Flameproofed molding composition | Norbert Niessner, Rainer Neumann, Karl Ruppmich, Doris Zeltner | 1993-06-15 |
| 5196480 | Thermoplastic molding material based on graft copolymers with bimodal particle size distribution and a two-step graft shell | Karl Ruppmich, Juergen Vietmeier | 1993-03-23 |
| 5176985 | Reaction product, preparation thereof and radiation-sensitive material obtained therewith | Erich Beck, Joachim Roser, Guenther Schulz, Eleonore Bueschges, Thomas Zwez | 1993-01-05 |
| 5120788 | Hermoplastic molding material of improved toughness | Karl Ruppmich | 1992-06-09 |
| 5114831 | Photopolymerizable laminating material | Gerhard Hoffmann, Gerhard Bauer | 1992-05-19 |
| 4962011 | Photopolymerizable recording materials containing a triazole sensitizer and photoresist layers and lithographic printing plates based thereon | Reinhard Aldag, Peter Neumann, Andreas Boettcher, Thomas Bluemel | 1990-10-09 |
| 4940649 | Photopolymerizable recording materials and photoresist layers and lithographic printing plates based thereon | Reinhard Aldag, Peter Neumann, Andreas Boettcher, Thomas Bluemel, Friedrich-Wilhelm Raulfs | 1990-07-10 |
| 4908448 | 4-Quinazolone compounds | Reinhard Aldag, Peter Neumann, Andreas Boettcher, Thomas Bluemel | 1990-03-13 |
| 4891301 | Photopolymerizable recording materials, photoresist layers and lithographic printing plates based theron, and novel 4-quinazolone compounds | Reinhard Aldag, Peter Neumann, Andreas Boettcher, Thomas Bluemel | 1990-01-02 |