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CPC Subgroup
F04C 29/12

Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Full Title

Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00 > Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

2 direct subcodes

Child Classifications

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Top Applicants

Top 10 applicants by patent filingsfor 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