Gerhard Illian
25Patents
7h-index
24Co-inventors
61Inventor score
Filing activity: Aug 3, 1990 → Mar 24, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5430564A | Process for producing ferroelectric liquid-crystal cells with oleophilic additive employing heat and low pressure overlapped a short time | Physics | 22 | Expired |
| US5257122A | Ferroelectric liquid crystal display having gray steps or a continuous gray scale | Physics | 18 | Expired |
| US5118538A | Electrically conductive polymers and their use as orienting layer in liquid-crystal switching and display elements | Physics | 16 | Expired |
| US5384070A | Use of optically active tetrahydrofuran-2-carboxylic acid esters as dopants in liquid-crystal mixtures, liquid-crystal mixtures containing same and novel optically active tetrahydrofuran-2-carboxylic acid esters | Chemistry; Metallurgy | 14 | Expired |
| US5361152A | Process for producing ferroelectric liquid-crystal cells | Physics | 14 | Expired |
| US5206751A | Process for the production of an impact-resistant liquid crystal switching and display device | Physics | 10 | Expired |
| US5353136A | Ferroelectric liquid crystal with positive dielectric anisotropy, chevron structure and grey scale | Physics | 8 | Expired |
| US5695683A | Ferroelectric liquid crystal mixture | Chemistry; Metallurgy | 7 | Expired |
| US5231528A | Ferroelectric liquid crystal components having high spontaneous polarization and low helical pitch | Physics | 6 | Expired |
| US5348684A | Organosilylalkyl or organosilylalkenyl compounds, process for preparing them and their use in liquid-crystalline mixtures | Chemistry; Metallurgy | 6 | Expired |
| US5407599A | Cyclopropylaklyl or -alkenyl or heterocyclic compounds, process for their preparation and their use in liquid-crystalline mixtures | Chemistry; Metallurgy | 6 | Expired |
| US5859680A | Electrical addressing of ferroelectric liquid-crystal displays | Physics | 5 | Expired |
| US5876628A | Compounds for use in liquid-crystal composition | Chemistry; Metallurgy | 4 | Expired |
| US5366657A | Geminal dimethylalkyl compounds, process for their preparation and their use in liquid-crystalline mixtures | Chemistry; Metallurgy | 4 | Expired |
| US5702639A | Use of complex ligands for ions in ferroelectric liquid-crystal mixtures | Chemistry; Metallurgy | 4 | Expired |
| US5328638A | Optically active esters of 5-ethyl- and 5-vinyl-1,3-dioxolane-4-carboxylic acid, their use as doping substances in liquid crystal mixtures and the liquid crystal mixtures containing the new esters | Chemistry; Metallurgy | 3 | Expired |
| US5286409A | Liquid-crystalline mixtures, in particular ferroelectric liquid-crystalline mixtures | Chemistry; Metallurgy | 3 | Expired |
| US5679792A | Derivatives of 3-cyclohexylpropionic acid, and the use thereof in ferroelectric liquid-crystal mixtures | Chemistry; Metallurgy | 2 | Expired |
| US5378394A | Ferroelectric liquid-crystalline mixtures | Chemistry; Metallurgy | 2 | Expired |
| US5344585A | Use of 4-fluoropyrimidine derivatives as component for ferroelectric liquid crystal mixtures | Chemistry; Metallurgy | 1 | Expired |
| US5779935A | Ferroelectric liquid crystal mixture | Chemistry; Metallurgy | 1 | Expired |
| US5443754A | Pyridylpyrimidines, a process for their preparation and their use in liquid-crystalline mixtures | Chemistry; Metallurgy | 0 | Expired |
| US5594575A | Ferroelectric liquid-crystal systems having three or more chiral additives with different signs of the helical twist in the cholesteric phase | Physics | 0 | Expired |
| US5370823A | Pyrimidinecyclohexane derivatives, process for their preparation, and their use in liquid-crystalline mixtures | Chemistry; Metallurgy | 0 | Expired |
| US5354500A | Optically active carboxylic esters of oxygen-containing heterocycles as doping substances in liquid crystal mixtures and liquid crystal mixtures containing them | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.