Stephen Z. D. Cheng
16Patents
6h-index
18Co-inventors
63Inventor score
Filing activity: Jun 4, 1993 → May 2, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5344916A | Negative birefringent polyimide films | Emerging Cross-Sectional Technologies | 102 | Expired |
| US5580950A | Negative birefringent rigid rod polymer films | Emerging Cross-Sectional Technologies | 64 | Expired |
| US5480964A | Negative birefringent polyimide films | Emerging Cross-Sectional Technologies | 56 | Expired |
| US6021524A | Cut resistant polymeric films | Emerging Cross-Sectional Technologies | 52 | Expired |
| US7058249B2 | Waveplate and optical circuit formed using mesogen-containing polymer | Physics | 15 | Expired |
| US5378420A | Process for preparing aromatic polyimide fibers | Textiles; Paper | 6 | Expired |
| US6870978B2 | Waveplate and optical circuit formed from mesogen-containing polymer | Physics | 5 | Expired |
| US9156696B2 | Process and method for the efficient preparation of fullerynes | Chemistry; Metallurgy | 2 | Active |
| US7820253B2 | Poly(aryletherimides) for negative birefringent films for LCDs | Emerging Cross-Sectional Technologies | 1 | Active |
| US7438957B2 | Poly(aryletherimides) for negative birefringent films for LCDs | Emerging Cross-Sectional Technologies | 1 | Active |
| US9478746B2 | Electron donor-fullerene conjugated molecules for organic photovoltaic cells | Emerging Cross-Sectional Technologies | 0 | Active |
| US8257493B2 | Photonic crystal, conjugated polymers suitable for photonic crystal, and a method for synthesizing conjugated polymers | Chemistry; Metallurgy | 0 | Expired |
| US9206285B2 | Photonic crystal, conjugated polymers suitable for photonic crystals, and a method for synthesizing conjugated polymers | Chemistry; Metallurgy | 0 | Active |
| US7074493B1 | Polyimides used as microelectronic coatings | Emerging Cross-Sectional Technologies | 0 | Expired |
| US9228069B2 | Sub-10-nanometer nanostructures engineered from giant surfactants | Emerging Cross-Sectional Technologies | 0 | Active |
| US10608184B2 | Organic polymer photo device with broadband response and increased photo-responsitivity | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.