Volker Reiffenrath
216Patents
20h-index
118Co-inventors
93Inventor score
Filing activity: Jan 23, 1987 → Oct 23, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5211878A | Difluorobenzonitrile derivatives | Chemistry; Metallurgy | 137 | Expired |
| US4820839A | Nitrogen-containing heterocyclic esters | Chemistry; Metallurgy | 50 | Expired |
| US4871469A | Nematic liquid-crystalline phases | Chemistry; Metallurgy | 42 | Expired |
| US6066268A | Liquid-crystalline medium | Chemistry; Metallurgy | 41 | Expired |
| US6203724A | Crosslinked cyclohexane derivatives, and liquid-crystalline medium | Chemistry; Metallurgy | 39 | Expired |
| US5384065A | Matrix liquid-crystal display | Chemistry; Metallurgy | 37 | Expired |
| US5273680A | Fluorinated oligophenyls and their use in liquid crystal materials | Chemistry; Metallurgy | 36 | Expired |
| US5487845A | Fluorobenzene derivatives and liquid-crystalline medium | Chemistry; Metallurgy | 29 | Expired |
| US5286411A | Liquid-crystalline medium | Chemistry; Metallurgy | 27 | Expired |
| US6444278B1 | 2,6-di-tert-butylphenols | Chemistry; Metallurgy | 26 | Expired |
| US5198149A | Smectic liquid-crystal medium | Chemistry; Metallurgy | 25 | Expired |
| US5578241A | Liquid crystal display | Chemistry; Metallurgy | 24 | Expired |
| US4925590A | Derivatives of 4-cyano-2,3-difluorophenol | Chemistry; Metallurgy | 23 | Expired |
| US5626793A | Liquid-crystalline compounds | Chemistry; Metallurgy | 23 | Expired |
| US5403512A | Vinyl compounds, and a liquid-crystalline medium | Chemistry; Metallurgy | 22 | Expired |
| US6740369B2 | Liquid-crystalline medium | Chemistry; Metallurgy | 22 | Expired |
| US5308542A | 4,4'-disubstituted 2',3-difluorobisphenyls and a liquid-crystalline medium | Chemistry; Metallurgy | 22 | Expired |
| US5958290A | Electrooptical liquid crystal system | Chemistry; Metallurgy | 21 | Expired |
| US5344587A | Electrooptical liquid-crystal system | Chemistry; Metallurgy | 21 | Expired |
| US5993691A | Electro-optical liquid crystal display | Chemistry; Metallurgy | 21 | Expired |
| US4871472A | Esters in ferroelectric mixtures | Chemistry; Metallurgy | 20 | Expired |
| US5718840A | Benzene derivatives, and liquid-crystalline medium | Chemistry; Metallurgy | 20 | Expired |
| US6207835A | Process for the preparation of arylmetal compounds and their reaction with electrophilic reagents | Chemistry; Metallurgy | 20 | Expired |
| US5714087A | Supertwist liquid-crystal display | Chemistry; Metallurgy | 19 | Expired |
| US5178790A | Supertwist liquid crystal display | Chemistry; Metallurgy | 19 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.