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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G03C 5/30

Developers

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Photographic processes or agents therefor; Regeneration of such processing agents > Processes using silver-salt-containing photosensitive materials or agents therefor > Development processes or agents therefor > Developers

CPC:

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) > Processes using silver-salt-containing photosensitive materials or agents therefor (physical development G03C5/58) > Development processes or agents therefor (G03C5/38, G03C5/50 take precedence) > Developers

Of 4 combined children, 0 exist in both systems.

4 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

Child Classifications

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Top Applicants

Top Applicants (IPC)

Class G03,2013–2023, worldwide · Source: EPO PATSTAT

  1. CANON 31,416
  2. CANON JP 17,469
  3. KYOCERA DOCUMENT SOLUTIONS 9,845
  4. RICOH COMPANY 9,807
  5. ASML NETHERLANDS NL 9,427
  6. FUJIFILM JP 7,225
  7. KONICA MINOLTA CORPORATION 7,216
  8. FUJI XEROX COMPANY 5,711
  9. CARL ZEISS SMT DE 4,971
  10. RICOH COMPANY JP 4,123

Top Applicants (CPC)

Class G03,2013–2023, worldwide · Source: EPO PATSTAT

  1. CANON JP 19,215
  2. CANON 12,916
  3. ASML NETHERLANDS NL 10,000
  4. FUJIFILM JP 7,814
  5. SAMSUNG ELECTRONICS COMPANY KR 5,181
  6. CARL ZEISS SMT DE 5,079
  7. RICOH COMPANY JP 4,343
  8. LG INNOTEK COMPANY KR 4,054
  9. KYOCERA DOCUMENT SOLUTIONS 3,812
  10. KYOCERA DOCUMENT SOLUTIONS JP 3,682