Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
G03G 9/12

in liquid developer mixtures

Introduced: July 1974

Last revised: January 2006

Full Title

Developers > with toner particles > in liquid developer mixtures

Classification Context

Section:
PHYSICS
Class:
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
Subclass:
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

3 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • G03G 9/125 characterised by the liquid
  • G03G 9/13 characterised by polymer components
  • G03G 9/135 characterised by stabiliser or charge-controlling agents

Top Applicants

Top 10 applicants by patent filingsfor 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