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F23J 1/00

Removing ash, clinker, or slag from combustion chambers ( devices for removal of material from the bed of fluidised bed combustion apparatus F23C10/24)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Removing ash, clinker, or slag from combustion chambers

CPC: Removing ash, clinker, or slag from combustion chambers ( devices for removal of material from the bed of fluidised bed combustion apparatus F23C10/24)

Full Title

Full titles differ between systems:

IPC:

Removing ash, clinker, or slag from combustion chambers

CPC:

Removing ash, clinker, or slag from combustion chambers ( devices for removal of material from the bed of fluidised bed combustion apparatus F23C10/24)

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • F23J 1/02 Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices IPC+CPC Available in IPC and CPC
  • F23J 1/04 Hand tools, e.g. rakes, prickers, tongs IPC+CPC Available in IPC and CPC
  • F23J 1/06 Mechanically-operated devices, e.g. clinker pushers (forming part of the grate F23H) IPC+CPC Available in IPC and CPC
  • F23J 1/08 Liquid slag removal since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F23,2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 2,124
  2. XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 1,369
  3. NINGBO FOTILE KITCHENWARE COMPANY 1,363
  4. SIEMENS DE 997
  5. UNITED TECHNOLOGIES CORPORATION (UTC) US 937
  6. GE (GENERAL ELECTRIC COMPANY) 898
  7. VATTI 815
  8. CHINESE ACADEMY OF SCIENCES 719
  9. RINNAI COMPANY 708
  10. MITSUBISHI HITACHI POWER SYSTEMS 670

Top Applicants (CPC)

Class F23,2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 2,581
  2. UNITED TECHNOLOGIES CORPORATION (UTC) US 1,180
  3. SIEMENS DE 1,157
  4. GE (GENERAL ELECTRIC COMPANY) 994
  5. XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 769
  6. MITSUBISHI HEAVY INDUSTRIES JP 701
  7. MITSUBISHI HITACHI POWER SYSTEMS JP 695
  8. RAYTHEON TECHNOLOGIES CORPORATION US 587
  9. NINGBO FOTILE KITCHENWARE COMPANY 543
  10. GENERAL ELECTRIC TECHNOLOGY CH 490