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PCE
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DIFF Main Group
F23M 9/00

Baffles or deflectors for air or combustion products (baffles or deflectors for air or combustion products structurally associated with burners F23D); Flame shields

Introduced: September 1968

Title

Titles differ between systems:

IPC: Baffles or deflectors for air or combustion products; Flame shields

CPC: Baffles or deflectors for air or combustion products (baffles or deflectors for air or combustion products structurally associated with burners F23D); Flame shields

Full Title

Full titles differ between systems:

IPC:

Baffles or deflectors for air or combustion products; Flame shields

CPC:

Baffles or deflectors for air or combustion products (baffles or deflectors for air or combustion products structurally associated with burners F23D); Flame shields

Additional Content IPC

Limiting references

Baffles or deflectors for air or combustion products structurally associated with burners , e.g. , ,

Application references

Steam boilers Fluid heaters, e.g. heating boilers Furnaces, kilns, ovens or retorts

Of 6 combined children, 5 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • F23M 9/02 in air inlets IPC+CPC Available in IPC and CPC
  • F23M 9/04 with air supply passages in the baffle or shield IPC+CPC Available in IPC and CPC
  • F23M 9/06 in fire-boxes IPC+CPC Available in IPC and CPC
  • F23M 9/08 Helical or twisted baffles or deflectors IPC+CPC Available in IPC and CPC
  • F23M 9/10 Baffles or deflectors formed as tubes, e.g. in water-tube boilers 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