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)
Full Title
Photosensitive materials (photosensitive materials for multicolour processes G03C7/00; for diffusion transfer processes G03C8/00; photosensitive glass C03C4/04) > Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein (catalytic amounts of silver halide in dry silver systems G03C1/494)
Filing statistics
CPC G03C 1/005 belongs to the parent subclass G03C, which recorded 1,200 patent applications worldwide between 2013 and 2023. Annual filings declined from 187 in 2013 to 34 in 2023 (-82%). The most active applicants in class G03 are CANON (19,215 applications), CANON (12,916 applications) and ASML NETHERLANDS (10,000 applications).
Source: EPO PATSTAT, worldwide filings
10 direct subcodes
Child Classifications
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- G03C 1/015 Apparatus or processes for the preparation of emulsions (coating, drying G03C1/74 )
- G03C 1/025 Physical treatment of emulsions, e.g. by ultrasounds, refrigeration or pressure (coating or drying G03C1/74)
- G03C 1/035 characterised by the crystal form or composition, e.g. mixed grain
- G03C 1/04 with macromolecular additives; with layer-forming substances
- G03C 1/06 with non-macromolecular additives (G03C1/047 takes precedence; )
- G03C 1/46 having more than one photosensitive layer
- G03C 1/485 Direct positive emulsions
- G03C 1/49 Print-out and photodevelopable emulsions
- G03C 1/492 Photosoluble emulsions
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