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DIFF Subgroup
G09B 19/08

Printed or written appliances, e.g. text books, bilingual letter assemblies, charts

Introduced: September 1968

Title

Titles differ between systems:

IPC: Printed or written appliances, e.g. textbooks, bilingual letter assemblies, charts

CPC: Printed or written appliances, e.g. text books, bilingual letter assemblies, charts

Full Title

Full titles differ between systems:

IPC:

Teaching not covered by other main groups of this subclass > Foreign languages > Printed or written appliances, e.g. textbooks, bilingual letter assemblies, charts

CPC:

Teaching not covered by other main groups of this subclass (teaching or practice apparatus for gun-aiming or gun-laying F41G3/26) > Foreign languages (with audible presentation of material to be studied G09B5/04) > Printed or written appliances, e.g. text books, bilingual letter assemblies, charts

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class G09,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG DISPLAY KR 16,046
  2. BOE TECHNOLOGY GROUP COMPANY 13,766
  3. BOE TECHNOLOGY GROUP COMPANY CN 12,804
  4. LG DISPLAY COMPANY KR 10,322
  5. SAMSUNG ELECTRONICS COMPANY KR 7,738
  6. SAMSUNG DISPLAY 5,172
  7. SEMICONDUCTOR ENERGY LABORATORY COMPANY 4,749
  8. SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 3,417
  9. LG DISPLAY COMPANY 3,335
  10. SONY CORPORATION JP 3,179

Top Applicants (CPC)

Class G09,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG DISPLAY KR 22,477
  2. BOE TECHNOLOGY GROUP COMPANY CN 16,016
  3. BOE TECHNOLOGY GROUP COMPANY 12,918
  4. LG DISPLAY COMPANY KR 12,599
  5. SAMSUNG ELECTRONICS COMPANY KR 12,009
  6. SAMSUNG DISPLAY 6,252
  7. SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 4,410
  8. SONY CORPORATION JP 3,965
  9. LG ELECTRONICS KR 3,901
  10. LG DISPLAY COMPANY 3,705