Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
F23R 3/30

comprising fuel prevapourising devices

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Continuous combustion chambers using liquid or gaseous fuel > characterised by the fuel supply > comprising fuel prevapourising devices

CPC:

Continuous combustion chambers using liquid or gaseous fuel > characterised by the fuel supply (burners F23D) > comprising fuel prevapourising devices

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1980.

Child Classifications

Navigate with arrow keys, Enter to open

  • F23R 3/32 being tubular 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