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DIFF Subgroup
F04C 25/02

for producing high vacuum (sealing arrangements F04C27/00; silencing F04C29/06)

Introduced: September 1968

Title

Titles differ between systems:

IPC: for producing high vacuum

CPC: for producing high vacuum (sealing arrangements F04C27/00; silencing F04C29/06)

Full Title

Full titles differ between systems:

IPC:

Adaptations for special use of pumps for elastic fluids > for producing high vacuum

CPC:

Adaptations of pumps for special use of pumps for elastic fluids > for producing high vacuum (sealing arrangements F04C27/00; silencing F04C29/06)

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