CPC Main Group
G03C 1/00 Photosensitive materials (photosensitive materials for multicolour processes G03C7/00; for diffusion transfer processes G03C8/00; photosensitive glass C03C4/04)
15 direct subcodes
Child Classifications
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- G03C 1/005 Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein (catalytic amounts of silver halide in dry silver systems G03C1/494)
- G03C 1/494 Silver salt compositions other than silver halide emulsions; Photothermographic systems
- G03C 1/50 Compositions containing noble metal salts other than silver salts, as photosensitive substances
- G03C 1/52 Compositions containing diazo compounds as photosensitive substances (G03C1/64 takes precedence)
- G03C 1/64 Compositions containing iron compounds as photosensitive substances
- G03C 1/66 Compositions containing chromates as photosensitive substances
- G03C 1/67 Compositions containing cobalt salts or cobalt compounds as photosensitive substances
- G03C 1/675 Compositions containing polyhalogenated compounds as photosensitive substances (for photopolymerisable or photocrosslinkable compositions G03F7/028, covered by G03C1/72)
- G03C 1/685 Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances
- G03C 1/695 Compositions containing azides as the photosensitive substances (for photopolymerisable or photocrosslinkable compositions G03F7/008)
- G03C 1/705 Compositions containing chalcogenides, metals or alloys thereof, as photosensitive substances, e.g. photodope systems (used as photoresist G03F7/004)
- G03C 1/72 Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
- G03C 1/74 Applying photosensitive compositions to the base; Drying processes therefor (G03C1/496 takes precedence)
- G03C 1/76 Photosensitive materials characterised by the base or auxiliary layers
Top Applicants
Top 10 applicants by patent filingsfor class G03, 2013–2023, worldwide · Source: EPO PATSTAT
- CANON JP 19,215
- CANON 12,916
- ASML NETHERLANDS NL 10,000
- FUJIFILM JP 7,814
- SAMSUNG ELECTRONICS COMPANY KR 5,181
- CARL ZEISS SMT DE 5,079
- RICOH COMPANY JP 4,343
- LG INNOTEK COMPANY KR 4,054
- KYOCERA DOCUMENT SOLUTIONS 3,812
- KYOCERA DOCUMENT SOLUTIONS JP 3,682