Issued Patents All Time
Showing 101–109 of 109 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5062861 | Novel navy and black disperse dye mixtures including amino-phenyl thiophene azo disperse dye and red, yellow or orange disperse dyes | Erwin Hahn, Guenter Hansen, Karl-Heinz Etzbach, Helmut Reichelt, Ernst Schefczik +2 more | 1991-11-05 |
| 5008397 | N-substituted benzimidazole-2-carboxanilides | Peter Spang, Peter Neumann, Hubert Trauth | 1991-04-16 |
| 4946762 | Monosubstituted and disubstituted phthalocyanines | Bernhard Albert, Harald Kuppelmaier | 1990-08-07 |
| 4937256 | Thiophene compounds | Reiner Kober, Joachim Leyendecker, Rainer Seele, Stefan Karbach, Norbert Meyer +2 more | 1990-06-26 |
| 4917989 | Optical recording medium which has a reflector layer containing a silicon-phthalocyanine derivative | Bernhard Albert, Peter Hauser, Michael Acker, Wolfgang Schrott | 1990-04-17 |
| 4908041 | Navy and black dye mixtures: thiophene azo disperse dye and red, yellow or orange disperse dye | Erwin Hahn, Guenter Hansen, Karl-Heinz Etzbach, Helmut Reichelt, Ernst Schefczik +2 more | 1990-03-13 |
| 4830951 | Naphtholactamsquaric acid dyes and optical recording materials containing these dyes | Matthias Dust, Peter Neumann, Peter Hauser, Heidi Benthack-Thoms, Helmut Barzynski +2 more | 1989-05-16 |
| 4829509 | Optical recording medium, its preparation and its use as a read only memory information carrier | Wolfgang Schrott, Peter Neumann, Peter Hauser | 1989-05-09 |
| 4820757 | Polymers photostabilized by novel imidazole-2-carboxanilides | Peter Spang, Peter Neumann, Hubert Trauth | 1989-04-11 |