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DIFF Subgroup
F01L 9/20

by electric means

Introduced: January 2021

Full Title

Valve-gear or valve arrangements actuated non-mechanically > by electric means

Of 5 combined children, 4 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

IPC defines codes here since 2021.

Child Classifications

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  • F01L 2009/25 2nd only CPC only CPC only
  • F01L 9/22 actuated by rotary motors since 2021 IPC+CPC Available in IPC and CPC
  • F01L 9/24 Piezoelectric actuators since 2021 IPC+CPC Available in IPC and CPC
  • F01L 9/26 Driving circuits therefor since 2021 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F01,2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 8,496
  2. UNITED TECHNOLOGIES CORPORATION (UTC) US 7,291
  3. SAFRAN AIRCRAFT ENGINES FR 5,503
  4. TOYOTA MOTOR CORPORATION 4,556
  5. SIEMENS DE 3,992
  6. HYUNDAI MOTOR COMPANY KR 3,929
  7. RAYTHEON TECHNOLOGIES CORPORATION US 3,534
  8. FORD GLOBAL TECHNOLOGIES US 3,407
  9. TOYOTA MOTOR CORPORATION JP 3,042
  10. WEICHAI POWER COMPANY 2,888

Top Applicants (CPC)

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