Harald Hirschmann
80Patents
8h-index
60Co-inventors
81Inventor score
Filing activity: Oct 1, 1997 → Jun 22, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7767277B2 | Fluorophenyl compounds for liquid-crystalline mixtures | Chemistry; Metallurgy | 27 | Active |
| US6902777B2 | Liquid-crystalline medium | Chemistry; Metallurgy | 14 | Expired |
| US6056894A | TN and STN liquid-crystal display | Chemistry; Metallurgy | 13 | Expired |
| US6497828B1 | Nematic liquid-crystal composition | Chemistry; Metallurgy | 12 | Expired |
| US5976404A | Supertwist liquid-crystal display | Chemistry; Metallurgy | 11 | Expired |
| US6028655A | TN and STN liquid-crystal display | Chemistry; Metallurgy | 11 | Expired |
| US5997767A | STN liquid-crystal display | Chemistry; Metallurgy | 10 | Expired |
| US6544602B1 | Supertwist liquid-crystal displays and liquid-crystal mixtures therefor | Chemistry; Metallurgy | 8 | Expired |
| US9512102B2 | 4,6-difluorodibenzothiophene derivatives | Chemistry; Metallurgy | 8 | Active |
| US9982194B2 | Liquid-crystalline media | Chemistry; Metallurgy | 8 | Active |
| US6174572A | Nematic liquid-crystal composition | Chemistry; Metallurgy | 8 | Expired |
| US7255811B2 | Tolane derivatives and liquid crystalline medium | Chemistry; Metallurgy | 7 | Expired |
| US6054193A | Supertwist liquid-crystal display | Chemistry; Metallurgy | 7 | Expired |
| US6613401B2 | Liquid-crystalline medium | Chemistry; Metallurgy | 7 | Expired |
| US8394293B2 | Thiophene derivatives, and LC media containing same | Chemistry; Metallurgy | 6 | Active |
| US6080451A | STN liquid crystal display | Chemistry; Metallurgy | 6 | Expired |
| US11008515B2 | Liquid-crystalline medium | Physics | 6 | Active |
| US6126857A | Bisalkenylbicyclohexanes, and liquid-crystalline medium | Chemistry; Metallurgy | 6 | Expired |
| US7563491B2 | Liquid crystalline medium and liquid crystal display | Chemistry; Metallurgy | 5 | Active |
| US6531194B2 | STN liquid-crystal display | Chemistry; Metallurgy | 4 | Expired |
| US6514579B1 | TN and STN liquid crystal displays | Chemistry; Metallurgy | 4 | Expired |
| US7442419B2 | Liquid-crystalline medium and liquid-crystal display | Chemistry; Metallurgy | 4 | Active |
| US6569503B1 | STN liquid-crystal display | Chemistry; Metallurgy | 4 | Expired |
| US8236390B2 | Liquid-crystalline medium | Chemistry; Metallurgy | 3 | Active |
| US6808763B2 | Liquid-crystalline medium | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.