G03C PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES (for photomechanical purposes G03F); PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY (photographic processes characterised by the use or manipulation of apparatus classifiable per se in subclass G03B, see G03B; photomechanical production of textured or patterned surfaces G03F; electrophotography, magnetography G03G)
Introduced: September 1968
Description
G03C covers photographic films, plates, papers, and emulsions designed to capture and record images through light exposure, including silver halide and other light-sensitive compositions. This subclass encompasses conventional color, black-and-white, X-ray, cinematographic, and stereoscopic photographic processes, as well as auxiliary techniques such as image development, fixing, sensitization, and post-exposure treatments. The classification extends to photosensitive layers, coating methods, and chemical formulations that enable photographic image formation across various media and applications. Related optical and digital imaging technologies are excluded; see G03B for photographic apparatus and G03F for photomechanical processes.
Title
Titles differ between systems:
IPC: PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
CPC: PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES (for photomechanical purposes G03F); PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY (photographic processes characterised by the use or manipulation of apparatus classifiable per se in subclass G03B, see G03B; photomechanical production of textured or patterned surfaces G03F; electrophotography, magnetography G03G)
Full Title
Full titles differ between systems:
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES (for photomechanical purposes G03F); PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY (photographic processes characterised by the use or manipulation of apparatus classifiable per se in subclass G03B, see G03B; photomechanical production of textured or patterned surfaces G03F; electrophotography, magnetography G03G)
Additional Content IPC
Glossary
Emulsion emulsions Dispersion, i.e. a distribution of finely divided particles in a medium Optical Applies to visible light, but also to ultraviolet radiation or infrared radiation Photosensitive composition photosensitive compositions Photosensitive substance, e.g. silver halide, and, if applicable, binder or additives Photosensitive material Photosensitive materials Photosensitive composition, e.g. emulsion, the base carrying it, and, if applicable, auxiliary layers
Limiting references
Photographic processes characterised by the use or manipulation of apparatus classifiable per se in subclass
Application references
Photographic emulsion plates or blocks in which tracks of nuclear particles are made visible by after-treatment
Of 8 combined children, 7 exist in both systems.
1 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.
5 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G03C 1/00 Photosensitive materials (photosensitive materials for multicolour processes G03C7/00; for diffusion transfer processes G03C8/00; photosensitive glass C03C4/04) +1 CPC IPC+CPC Available in IPC and CPC
- G03C 11/00 Auxiliary processes in photography (characterised by the apparatus used G03D15/00) +1 CPC IPC+CPC Available in IPC and CPC
- G03C 3/00 Packages of films for inserting into cameras, e.g. roll-films, film-packs; Wrapping materials for light-sensitive plates, films or papers, e.g. materials characterised by the use of special dyes, printing inks, adhesives (wrapping materials in general B65D) +2 CPC IPC+CPC Available in IPC and CPC
- G03C 5/00 Photographic processes or agents therefor; Regeneration of such processing agents (multicolour processes or agents therefor G03C7/00; diffusion-transfer processes or agents therefor G03C8/00; stereo-photographic processes G03C9/00; photomechanical processes G03F) IPC+CPC Available in IPC and CPC
- G03C 7/00 Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes (diffusion transfer processes G03C8/00) IPC+CPC Available in IPC and CPC
- G03C 8/00 Diffusion transfer processes or agents therefor; Photosensitive materials for such processes since 1990 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class G03,2013–2023, worldwide · Source: EPO PATSTAT
- CANON 31,416
- CANON JP 17,469
- KYOCERA DOCUMENT SOLUTIONS 9,845
- RICOH COMPANY 9,807
- ASML NETHERLANDS NL 9,427
- FUJIFILM JP 7,225
- KONICA MINOLTA CORPORATION 7,216
- FUJI XEROX COMPANY 5,711
- CARL ZEISS SMT DE 4,971
- RICOH COMPANY JP 4,123
Top Applicants (CPC)
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