Photosensitive materials (G03F7/12, G03F7/14 take precedence)

Introduced: January 1990

Title

Titles differ between systems:

IPC: Photosensitive materials

CPC: Photosensitive materials (G03F7/12, G03F7/14 take precedence)

Full Title

Full titles differ between systems:

IPC:

Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor > Photosensitive materials

CPC:

Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor (using photoresist structures for special production processes, see the relevant places, e.g. B44C, H10P76/00, H05K) > Photosensitive materials (G03F7/12, G03F7/14 take precedence)

Of 18 combined children, 12 exist in both systems.

6 codes are CPC-only extensions.

11 shared codes have differing titles between IPC and CPC.

Child Classifications

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G03F 7/0041 CPC only CPC only
G03F 7/0042 +2 CPC CPC only CPC only
G03F 7/0045 CPC only CPC only
G03F 7/0046 CPC only CPC only
G03F 7/0047 CPC only CPC only
G03F 7/0048 CPC only CPC only
G03F 7/008 Azides (G03F7/075 takes precedence) since 1990 +1 CPC IPC+CPC Available in IPC and CPC
G03F 7/016 Diazonium salts or compounds (G03F7/075 takes precedence) since 1990 +2 CPC IPC+CPC Available in IPC and CPC
G03F 7/022 Quinonediazides (G03F7/075 takes precedence) since 1990 +2 CPC IPC+CPC Available in IPC and CPC
G03F 7/025 Non-macromolecular photopolymerisable compounds having carbon-to-carbon triple bonds, e.g. acetylenic compounds (G03F7/075 takes precedence) since 1990 IPC+CPC Available in IPC and CPC
G03F 7/027 Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds (G03F7/075 takes precedence) since 1990 +1 CPC IPC+CPC Available in IPC and CPC
G03F 7/038 Macromolecular compounds which are rendered insoluble or differentially wettable (G03F7/075 takes precedence; macromolecular azides G03F7/012; macromolecular diazonium compounds G03F7/021) since 1990 +6 CPC IPC+CPC Available in IPC and CPC
G03F 7/039 Macromolecular compounds which are photodegradable, e.g. positive electron resists (G03F7/075 takes precedence; macromolecular quinonediazides G03F7/023) since 1990 +1 CPC IPC+CPC Available in IPC and CPC
G03F 7/04 Chromates (G03F7/075 takes precedence) IPC+CPC Available in IPC and CPC
G03F 7/06 Silver salts (G03F7/075 takes precedence) +1 CPC IPC+CPC Available in IPC and CPC
G03F 7/075 Silicon-containing compounds since 1990 +5 CPC IPC+CPC Available in IPC and CPC
G03F 7/085 Photosensitive compositions characterised by adhesion-promoting non-macromolecular additives (G03F7/075 takes precedence) since 1990 IPC+CPC Available in IPC and CPC
G03F 7/09 characterised by structural details, e.g. supports, auxiliary layers (supports for printing plates in general B41N) since 1990 +4 CPC 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