Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702777 | Silane couplers containing cyclic structural elements as alignment films | Norbert Rosch | 1997-12-30 |
| 5644016 | Maleimide copolymer as alignment layer for liquid-crystal displays | Horst Roschert, Norbert Rosch | 1997-07-01 |
| 5409635 | Alignment layers containing cyclic structural elements | Norbert Rosch, Rainer Wingen | 1995-04-25 |
| 5384168 | Ferroelectric liquid-crystal display of high contrast and brightness | Hans-Rolf Dubal, Takamasa Harada, Heinz Rieger, Norbert Rosch | 1995-01-24 |
| 5178792 | Macrocyclic compounds as component for ferroelectric liquid crystal mixtures | Takamasa Harada, Norbert Rosch | 1993-01-12 |
| 5100520 | Process for the preparation of thiophene derivatives | Steffen Dapperheld, Michael Feldhues, Heinz Litterer, Frank P. Sistig | 1992-03-31 |
| 5093033 | Soluble, electrically conductive polymers, process for preparing them, and their use | Michael Feldhues, Thomas Mecklenburg, Gunther Kampf | 1992-03-03 |
| 4975885 | Digital input stage for an ultrasound apparatus | Dietrich Hassler, Erhard Schmidt | 1990-12-04 |
| 4931568 | Process for the preparation of thiophene ethers | Michael Feldhues, Heinz Litterer | 1990-06-05 |
| 4375436 | Continuous process for the production of chloroalkyl-sulfonyl isocyanates | Wilhelm Riemenschneider, Dieter Ulmschneider | 1983-03-01 |