Herbert Plach
90Patents
16h-index
68Co-inventors
87Inventor score
Filing activity: May 15, 1989 → Sep 26, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5122295A | Matrix liquid crystal display | Chemistry; Metallurgy | 58 | Expired |
| US5171469A | Liquid-crystal matrix display | Chemistry; Metallurgy | 33 | Expired |
| US5045229A | Difluoromethylene compounds | Chemistry; Metallurgy | 31 | Expired |
| US5487845A | Fluorobenzene derivatives and liquid-crystalline medium | Chemistry; Metallurgy | 29 | Expired |
| US5286411A | Liquid-crystalline medium | Chemistry; Metallurgy | 27 | Expired |
| US5368772A | Liquid-crystalline medium | Chemistry; Metallurgy | 26 | Expired |
| US5578241A | Liquid crystal display | Chemistry; Metallurgy | 24 | Expired |
| US5626793A | Liquid-crystalline compounds | Chemistry; Metallurgy | 23 | Expired |
| US5403512A | Vinyl compounds, and a liquid-crystalline medium | Chemistry; Metallurgy | 22 | Expired |
| US5389289A | Liquid-crystalline medium | Chemistry; Metallurgy | 22 | Expired |
| US5397505A | Liquid crystalline medium | Chemistry; Metallurgy | 20 | Expired |
| US5718840A | Benzene derivatives, and liquid-crystalline medium | Chemistry; Metallurgy | 20 | Expired |
| US5178790A | Supertwist liquid crystal display | Chemistry; Metallurgy | 19 | Expired |
| US5562858A | Hexafluoropropyl ethers, and liquid-crystalline medium | Chemistry; Metallurgy | 18 | Expired |
| US5932138A | Benzene derivatives, and liquid-crystalline medium | Chemistry; Metallurgy | 17 | Expired |
| US5641429A | Fluorobenzene derivatives and liquid-crystalline medium | Chemistry; Metallurgy | 16 | Expired |
| US5536442A | Fluorinated liquid crystal compounds and liquid crystal medium containing same | Chemistry; Metallurgy | 16 | Expired |
| US5308541A | Halogenated benzene derivatives, and a liquid-crystalline medium | Chemistry; Metallurgy | 16 | Expired |
| US7794621B2 | Liquid crystal system and liquid crystal display | Chemistry; Metallurgy | 16 | Active |
| US5271865A | Liquid-crystalline mixture of low viscosity | Chemistry; Metallurgy | 15 | Expired |
| US5350535A | Liquid-crystalline medium | Chemistry; Metallurgy | 14 | Expired |
| US5389295A | Benzene derivatives, and a liquid crystal medium | Chemistry; Metallurgy | 14 | Expired |
| US5458805A | Phenylcyclohexanes and a liquid-crystalline medium | Chemistry; Metallurgy | 14 | Expired |
| US5480581A | Liquid-crystalline medium | Chemistry; Metallurgy | 14 | Expired |
| US5409637A | Nematic liquid-crystal composition | Chemistry; Metallurgy | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.