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DIFF Main Group
F22G 5/00

Controlling superheat temperature

Introduced: September 1968

IPC and CPC are identically structured here. All 8 subcodes exist in both systems.

Child Classifications

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  • F22G 5/02 Applications of combustion-control devices, e.g. tangential-firing burners, tilting burners IPC+CPC Available in IPC and CPC
  • F22G 5/04 by regulating flue gas flow, e.g. by proportioning or diverting IPC+CPC Available in IPC and CPC
  • F22G 5/10 by displacing superheater sections IPC+CPC Available in IPC and CPC
  • F22G 5/16 by indirectly cooling or heating the superheated steam in auxiliary enclosed heat-exchanger IPC+CPC Available in IPC and CPC
  • F22G 5/18 by by-passing steam around superheater sections IPC+CPC Available in IPC and CPC
  • F22G 5/20 by combined controlling procedures IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F22,2013–2023, worldwide · Source: EPO PATSTAT

  1. XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 922
  2. MIURA COMPANY 416
  3. HARBIN BOILER COMPANY 390
  4. MITSUBISHI HITACHI POWER SYSTEMS 303
  5. XIAN JIAOTONG UNIVERSITY 287
  6. SGCC(STATE GRID CORPORATION OF CHINA) 257
  7. HUADIAN ELECTRIC POWER RESEARCH INSTITUTE 253
  8. SIEMENS DE 247
  9. MIDEA 243
  10. NORTH CHINA ELECTRIC POWER UNIVERSITY 223

Top Applicants (CPC)

Class F22,2013–2023, worldwide · Source: EPO PATSTAT

  1. XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 544
  2. SIEMENS DE 306
  3. PHILIP MORRIS PRODUCTS CH 258
  4. GENERAL ELECTRIC TECHNOLOGY CH 254
  5. MITSUBISHI HITACHI POWER SYSTEMS JP 235
  6. XIAN JIAOTONG UNIVERSITY 214
  7. MITSUBISHI HEAVY INDUSTRIES JP 195
  8. MITSUBISHI HITACHI POWER SYSTEMS 169
  9. HARBIN BOILER COMPANY 166
  10. VALMET TECHNOLOGIES FI 155