Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5651918 | Optically active 1,3-dioxolane derivatives carrying a mesogenic radical in the 4-position, a process for their preparation and their use as doping agents in liquid-crystal mixtures | Jurgen Gay, Rainer Wingen, Hans-Rolf Dubal, Claus Escher, Wolfgang Hemmerling +3 more | 1997-07-29 |
| 5637254 | Ferroelectric liquid-crystalline polymers, a process for their preparation and their use in electrooptical components | Andreas Schliwa, Wolfgang Trapp | 1997-06-10 |
| 5352380 | Ferroelectric liquid-crystalline polymers, a process for their preparation and their use in electrooptical components | Andreas Schliwa, Wolfgang Trapp | 1994-10-04 |
| 5336436 | Optically active oxirane derivatives, and their use as dopes in liquid-crystal mixtures | Kirsten Gruneberg | 1994-08-09 |
| 5334328 | Chiral azetidinone derivatives, and their use as dopes in liquid-crystal mixtures | Claas Junghans, Anke Kaltbeitzel, Rainer Wingen, Britta Michalski | 1994-08-02 |
| 5310499 | Oxazolidinone derivatives, and the use thereof as dopes in liquid-crystal mixtures | Michael Sefkow, Gerd Illian, Rainer Wingen | 1994-05-10 |
| 5288425 | Ferroelectric, liquid-crystalline polymers, a process for their preparation and their use in electrooptical components | Andreas Schliwa, Wolfgang Trapp | 1994-02-22 |
| 5227090 | Ferroelectric, liquid-crystalline polymers, a process for their preparation and their use in electrooptical components | Uwe Muller | 1993-07-13 |
| 4996330 | Chiral substituted tartarimides | Peter Schreiber | 1991-02-26 |
| 4988459 | Use of optically active oxirane-2-carboxylic acid esters as dopants in liquid-crystal mixtures, liquid-crystal mixtures containing same and novel optically active oxirane-2-carboxylic acid esters | Jurgen Gay, Hans-Rolf Dubal, Claus Escher, Wolfgang Hemmerling, Ingrid Muller +2 more | 1991-01-29 |
| 4968820 | Chiral reaction products produced from mesogenic molecular structural elements and bifunctionally reactive butanetetraol derivatives, and their use as dopants in liquid crystal phases | Manel Gunaratne | 1990-11-06 |
| 4966726 | Chiral reaction products produced from mesogenic molecular structural elements and bifunctionally reactive tartaric acid derivatives, and their use as dopants in liquid crystal phases | Manel Gunaratne | 1990-10-30 |
| 4874545 | Chiral esters of .alpha.-substituted phenylalkanoic acids and mesogenic hydroxy compounds, and their use as a doping substance in liquid crystal phases | Gerd Heppke, Christian Bahr, Lutz Lehmann | 1989-10-17 |
| 4826620 | Chiral phenolic esters of mesogenic carboxylic acids and their use as admixture in liquid crystal phases | Gerd Heppke, Detlef Lotzsch, Feodor Oestreicher | 1989-05-02 |
| 4532069 | Anthraquinone dyestuffs for liquid crystal dielectrics | Michael Butow | 1985-07-30 |