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CPC Main Group
F01C 21/00

Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00

12 direct subcodes

Child Classifications

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  • F01C 21/02 Arrangements of bearings (bearing constructions F16C)
  • F01C 21/06 Heating; Cooling (of machines or engines in general F01P); Heat insulation (heat insulation in general F16L)

Top Applicants

Top 10 applicants by patent filingsfor class F01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 9,989
  2. UNITED TECHNOLOGIES CORPORATION (UTC) US 8,110
  3. SAFRAN AIRCRAFT ENGINES FR 6,248
  4. HYUNDAI MOTOR COMPANY KR 4,530
  5. SIEMENS DE 4,461
  6. FORD GLOBAL TECHNOLOGIES US 4,029
  7. RAYTHEON TECHNOLOGIES CORPORATION US 3,947
  8. TOYOTA MOTOR CORPORATION JP 3,734
  9. GE (GENERAL ELECTRIC COMPANY) 3,415
  10. SCHAEFFLER TECHNOLOGIES & COMPANY DE 3,063