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DIFF Subgroup
F16D 41/066

all members having the same size and only one of the two surfaces being cylindrical

Introduced: January 1995

Full Title

Full titles differ between systems:

IPC:

Freewheels or freewheel clutches > with intermediate wedging coupling members between an inner and an outer surface > the intermediate members wedging by rolling and having a circular cross-section, e.g. balls > all members having the same size and only one of the two surfaces being cylindrical

CPC:

Freewheels or freewheel clutches (cycle brakes controlled by back-pedalling B62L5/00 ) > with intermediate wedging coupling members between an inner and an outer surface (F16D41/02, F16D41/24 take precedence) > the intermediate members wedging by rolling and having a circular cross-section, e.g. balls (F16D41/061 takes precedence) > all members having the same size and only one of the two surfaces being cylindrical

Of 2 combined children, 1 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 1995.

Child Classifications

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  • F16D 2041/0665 2nd only CPC only CPC only
  • F16D 41/067 and the members being distributed by a separate cage encircling the axis of rotation since 1995 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F16,2013–2023, worldwide · Source: EPO PATSTAT

  1. SCHAEFFLER TECHNOLOGIES & COMPANY DE 21,545
  2. ZAHNRADFABRIK FRIEDRICHSHAFEN DE 9,446
  3. TOYOTA MOTOR CORPORATION 7,215
  4. HYUNDAI MOTOR COMPANY KR 6,846
  5. ROBERT BOSCH DE 6,106
  6. NTN CORPORATION 5,305
  7. SKF SE 4,219
  8. KIA MOTORS CORPORATION KR 3,852
  9. NSK 3,850
  10. HONDA MOTOR COMPANY 3,639

Top Applicants (CPC)

Class F16,2013–2023, worldwide · Source: EPO PATSTAT

  1. SCHAEFFLER TECHNOLOGIES & COMPANY DE 22,817
  2. ZAHNRADFABRIK FRIEDRICHSHAFEN DE 10,523
  3. HYUNDAI MOTOR COMPANY KR 7,933
  4. ROBERT BOSCH DE 7,059
  5. KIA MOTORS CORPORATION KR 4,867
  6. SKF SE 4,729
  7. TOYOTA MOTOR CORPORATION JP 4,111
  8. FORD GLOBAL TECHNOLOGIES US 3,838
  9. GM GLOBAL TECHNOLOGY OPERATIONS US 3,575
  10. TOYOTA MOTOR CORPORATION 3,499