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PCE
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DIFF Subgroup
F04B 15/04

the fluids being hot or corrosive (for liquids near their boiling point, e.g. under subnormal pressure, F04B15/06)

Introduced: September 1968

Title

Titles differ between systems:

IPC: the fluids being hot or corrosive

CPC: the fluids being hot or corrosive (for liquids near their boiling point, e.g. under subnormal pressure, F04B15/06)

Full Title

Full titles differ between systems:

IPC:

Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts > the fluids being hot or corrosive

CPC:

Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts > the fluids being hot or corrosive (for liquids near their boiling point, e.g. under subnormal pressure, F04B15/06)

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class F04,2013–2023, worldwide · Source: EPO PATSTAT

  1. GREE ELECTRIC APPLIANCES 5,351
  2. LG ELECTRONICS KR 3,502
  3. ROBERT BOSCH DE 3,011
  4. MIDEA 2,258
  5. MITSUBISHI ELECTRIC CORPORATION JP 1,663
  6. ZHUHAI LANDA COMPRESSOR COMPANY 1,639
  7. GREE ELECTRIC APPLIANCES, INC.OF ZHUHAI 1,573
  8. ZHUHAI GREE ENERGY-SAVING REFRIGERATION TECHNOLOGY RESEARCH CENTER COMPANY 1,536
  9. TOYOTA INDUSTRIES CORPORATION 1,347
  10. DAIKIN INDUSTRIES 1,325

Top Applicants (CPC)

Class F04,2013–2023, worldwide · Source: EPO PATSTAT

  1. LG ELECTRONICS KR 3,855
  2. ROBERT BOSCH DE 3,549
  3. GREE ELECTRIC APPLIANCES 2,273
  4. GE (GENERAL ELECTRIC COMPANY) US 2,126
  5. MITSUBISHI ELECTRIC CORPORATION JP 1,881
  6. UNITED TECHNOLOGIES CORPORATION (UTC) US 1,866
  7. SAFRAN AIRCRAFT ENGINES FR 1,499
  8. MITSUBISHI HEAVY INDUSTRIES JP 1,258
  9. TOYOTA INDUSTRIES CORPORATION JP 1,247
  10. ATLAS COPCO AIRPOWER BE 1,168