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CPC Subgroup Additional Only
G03G 2215/0636

Specific type of dry developer device

Full Title

Apparatus for electrophotographic processes > Developing structures, details > Developing device > Specific type of dry developer device

6 direct subcodes

Child Classifications

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  • G03G 2215/0639 Without donor member (i.e. developing housing slides on latent image-carrying member)
  • G03G 2215/0641 Without separate supplying member (i.e. with developing housing sliding on donor member)
  • G03G 2215/0648 Two or more donor members
  • G03G 2215/0656 Fixed electrodes behind moving donor member surface

Top Applicants

Top 10 applicants by patent filingsfor 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