Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654479 | 4-substituted bis(2,6-diisopropylphenyl)-carbodiimides, their preparation, their use, and 4-substituted 2,6-diisopropylphenyl isocyanates which can be used for their preparation | Friedhelm Lehrich, Siegmund Pohl, Bernd Bruchmann, Helmut Tesch, Roland Minges +3 more | 1997-08-05 |
| 5621138 | 4-substituted bis (2,6-diisopropylphenyl)- carbodiimides, their preparation, their use, and 4-substituted 2,6-diisopropylphenyl isocyanates which can be used for their preparation | Friedhelm Lehrich, Siegmund Pohl, Bernd Bruchmann, Helmut Tesch, Roland Minges +3 more | 1997-04-15 |
| 5532414 | 4-substituted bis(2,6-diisopropylphenyl)-carbodiimides, their preparation, their use, and 4-substituted 2,6-diisopropylphenyl isocyanates which can be used for their preparation | Friedhelm Lehrich, Siegmund Pohl, Bernd Bruchmann, Helmut Tesch, Roland Minges +3 more | 1996-07-02 |
| 4788253 | Thermoplastic molding material | Juergen Hambrecht, Burghard Schmitt, Georg Wassmuth, Claus Bernhard, Rudolf Stephan | 1988-11-29 |
| 4762874 | Thermoplastic molding materials | Juergen Hambrecht, Karl H. Illers, Adolf Echte | 1988-08-09 |
| 4696996 | Preparation of polyphenylene ethers, and an apparatus for this purpose | Hermann Brandt, Hermann Fischer, Hermann Dreher, Eduard Heil, Juergen Hambrecht +6 more | 1987-09-29 |
| 4654418 | Continuous removal of the catalyst from polyphenylene ethers | Rosemarie Berger, Hermann Dreher, Juergen Hambrecht, Eduard Heil, Rudi W. Reffert +2 more | 1987-03-31 |
| 4634734 | Thermoplastic molding material | Juergen Hambrecht, Burghard Schmitt, Georg Wassmuth, Claus Bernhard, Rudolf Stephan | 1987-01-06 |
| 4632946 | Halogen-free flameproofed thermoplastic molding material | Volker Muench, Juergen Hambrecht, Adolf Echte, Karl H. Illers | 1986-12-30 |
| 4618668 | Preparation of polyphenylene ethers | Volker Muench, Juergen Hambrecht, Walter Himmele, Adolf Echte | 1986-10-21 |
| 4605699 | Thermoplastic molding compositions containing polycarbonate and an acrylate graft copolymer | Konrad Mitulla, Juergen Hambrecht, Adolf Echte, Peter Siebel, Josef Schwaab +1 more | 1986-08-12 |
| 4604415 | Thermoplastic molding materials | Juergen Hambrecht, Karl H. Illers, Adolf Echte | 1986-08-05 |
| 4603169 | Thermoplastic molding compositions containing polycarbonate and a graft copolymer of resin-forming monomers on a rubber | Konrad Mitulla, Juergen Hambrecht, Adolf Echte, Peter Siebel | 1986-07-29 |
| 4536567 | Removal of the catalyst from polyphenylene ethers | Juergen Hambrecht, Rudi W. Reffert, Peter Minges | 1985-08-20 |
| 4496679 | Stabilization of polyphenylene ether solutions | Juergen Hambrecht, Rudi W. Reffert, Adolf Echte | 1985-01-29 |
| 4482705 | Removal of the catalyst from polyphenylene ethers | Juergen Hambrecht, Rudi W. Reffert, Volker Muench, Adolf Echte | 1984-11-13 |
| 4442263 | Thermoplastic molding materials | Franz Brandstetter, Juergen Hambrecht, Rudolf Stephan, Heinz-Juergen Overhoff, Josef Schwaab +2 more | 1984-04-10 |
| 4224419 | Weathering-resistant, high-impact, easily colored thermoplastic compositions | Gerhard Lindenschmidt, Claus Bernhard | 1980-09-23 |