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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G03B 13/10

adjusting viewfinders field

Introduced: September 1968

Title

Titles differ between systems:

IPC: adjusting viewfinder field

CPC: adjusting viewfinders field

Full Title

Full titles differ between systems:

IPC:

Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras > Viewfinders > adjusting viewfinder field

CPC:

Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras > Viewfinders > adjusting viewfinders field

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • G03B 13/12 to compensate for change of camera lens or size of picture IPC+CPC Available in IPC and CPC
  • G03B 13/14 to compensate for parallax due to short range IPC+CPC Available in IPC and CPC

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