Teh-Hsuan Chen
23Patents
5h-index
18Co-inventors
58Inventor score
Filing activity: Feb 22, 1990 → Feb 6, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5151343A | Photographic material and process comprising wash-out naphtholic coupler | Physics | 22 | Expired |
| US5026628A | Photographic material and process comprising a compound capable of forming a wash-out dye | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5183728A | Photographic silver halide materials and process comprising new pyrazoloazole couplers | Physics | 7 | Expired |
| US5021322A | Photographic element comprising a development inhibitor releasing compound having a linking group between the carrier and the inhibitor | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5283163A | Photographic material and process employing a development inhibitor releasing compound containing a fluorinated carbon alpha to an amide group | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5302496A | Photographic silver halide materials and process comprising new pyrazoloazole coupler | Physics | 5 | Expired |
| US5234800A | Photographic material and process comprising wash-out naphtholic coupler | Physics | 4 | Expired |
| US5306607A | Photographic material and process comprising a pyrazolotriazole moiety | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5250399A | Photographic material and process comprising a universal coupler | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5283340A | Photographic material and process comprising wash-out naphtholic coupler | Physics | 3 | Expired |
| US5279929A | Photographic material and process comprising a coupler capable of forming a wash-out dye (C/C) | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5288593A | Photographic material and process comprising a coupler capable of forming a wash-out dye (Q/Q) | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5709987A | Photographic element containing a coupler capable of releasing a photographically useful group through a triazole group | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5686234A | Photographic element containing a coupler capable of releasing a photographically useful group | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5334490A | Magenta development inhibitor releasing coupler | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5817809A | Photographic element containing a coupler capable of releasing a photographically useful group through a triazole group | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5670301A | Photographic element containing a coupler capable of releasing a photographically useful group | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5834604A | Photographic element containing a coupler capable of releasing a photograpically useful group through a pyrazole group | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5250398A | Photographic silver halide material and process comprising water-solubilized naphtholic coupler | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5719017A | Photographic element containing a coupler capable of releasing a photographically useful group through a pyrazole group | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5912110A | Photographic coupler capable of releasing a photographically useful group | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6007974A | Silver halide element containing triazole inhibitors | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5962656A | Indazole containing coupler | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.