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DIFF Subgroup
G01J 5/02

Constructional details

Introduced: September 1968

Full Title

Radiation pyrometry, e.g. infrared or optical thermometry > Constructional details

Additional Content IPC

Details pertaining to radiation pyrometry using polarisation effects

CPC subdivides this area 3x more granularly than IPC with 12 additional codes.

12 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • G01J 5/0205 CPC only CPC only
  • G01J 5/021 CPC only CPC only
  • G01J 5/025 CPC only CPC only
  • G01J 5/0255 CPC only CPC only
  • G01J 5/026 CPC only CPC only
  • G01J 5/0265 CPC only CPC only
  • G01J 5/027 CPC only CPC only
  • G01J 5/0275 CPC only CPC only
  • G01J 5/028 CPC only CPC only
  • G01J 5/0295 CPC only CPC only
  • G01J 5/03 Arrangements for indicating or recording specially adapted for radiation pyrometers since 2022 IPC+CPC Available in IPC and CPC
  • G01J 5/07 Arrangements for adjusting the solid angle of collected radiation, e.g. adjusting or orienting field of view, tracking position or encoding angular position (optical collimating elements G01J5/0806) since 2022 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 41,447
  2. CHINESE ACADEMY OF SCIENCES 32,952
  3. ROBERT BOSCH DE 16,470
  4. SAMSUNG ELECTRONICS COMPANY KR 10,052
  5. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
  6. ZHEJIANG UNIVERSITY 9,529
  7. GUANGDONG POWER GRID CORPORATION 8,615
  8. TSINGHUA UNIVERSITY 7,805
  9. HALLIBURTON ENERGY SERVICES GROUP US 7,796
  10. QUALCOMM US 7,171

Top Applicants (CPC)

Class G01,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 21,460
  2. ROBERT BOSCH DE 17,801
  3. SGCC(STATE GRID CORPORATION OF CHINA) 17,347
  4. SAMSUNG ELECTRONICS COMPANY KR 13,192
  5. QUALCOMM US 9,900
  6. HALLIBURTON ENERGY SERVICES GROUP US 9,742
  7. PHILIPS ELECTRONICS NL 7,249
  8. MITSUBISHI ELECTRIC CORPORATION JP 6,503
  9. ZHEJIANG UNIVERSITY 6,414
  10. DENSO CORPORATION JP 6,382