Robert F. Romanet
22Patents
5h-index
31Co-inventors
65Inventor score
Filing activity: Oct 31, 1988 → Jan 18, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5457210A | Intermediates for the preparation of pyrazoloazole photographic couplers, processes of making and using them | Chemistry; Metallurgy | 22 | Expired |
| US5645981A | Photographic silver halide materials and process comprising a pyrazolotriazole coupler | Physics | 21 | Expired |
| US5681691A | Photographic element containing an improved pyrazolotriazole coupler | Physics | 7 | Expired |
| US5183728A | Photographic silver halide materials and process comprising new pyrazoloazole couplers | Physics | 7 | Expired |
| US5972587A | Photographic element having improved magenta dye light stability and process for its use | Physics | 7 | Expired |
| US5302496A | Photographic silver halide materials and process comprising new pyrazoloazole coupler | Physics | 5 | Expired |
| US5972574A | Photographic element containing magenta coupler having improved manufacturability and dye light stability | Physics | 5 | Expired |
| US5985533A | Photographic element having improved magenta dye light stability and process for its use | Physics | 4 | Expired |
| US5688964A | Process for preparing a acylhyrazino pyrazole derivative | Chemistry; Metallurgy | 3 | Expired |
| US5565572A | Intermediates for the preparation of pyrazoloazole photographic couplers, processes of making and using them | Chemistry; Metallurgy | 3 | Expired |
| US5985532A | Photographic element containing an improved pyrozolotriazole coupler | Physics | 3 | Expired |
| US5256529A | Silver halide photographic materials containing sulfonamido-solubilized pyrazolotriazole couplers | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6416943B1 | Color photographic element containing coupler useful for forming neutral silver-based image | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6296997A | Photographic element and compound and process useful therewith | Physics | 1 | Expired |
| US6593477B1 | Synthesis of 3-acylaminopyrazoles | Chemistry; Metallurgy | 1 | Expired |
| US7153641B2 | Photographic element containing improved pyrazolotriazole coupler | Physics | 0 | Expired |
| US6852480B1 | Photographic material comprising a bicyclic pyrazolotriazole coupler with improved photographic properties | Physics | 0 | Expired |
| US6291152A | Photographic element having improved dye stability, compound, and imaging process | Physics | 0 | Expired |
| US6787294B1 | Photographic material comprising a bicyclic pyrazolotriazole coupler with improved hue | Physics | 0 | Expired |
| US6657066B1 | Synthesis of certain triazole compounds | Chemistry; Metallurgy | 0 | Expired |
| US5981760A | Intermediates for the preparation of pyrazoloazole photographic couplers, processes of making and adjusting them | Chemistry; Metallurgy | 0 | Expired |
| US4892805A | Photographic element and process | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.