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DIFF Subgroup
F16H 55/36

Pulleys (with features essential for adjustment F16H55/52)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Pulleys

CPC: Pulleys (with features essential for adjustment F16H55/52)

Full Title

Full titles differ between systems:

IPC:

Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms > Friction members > Pulleys

CPC:

Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms (of screw-and-nut gearing F16H25/00) > Friction members > Pulleys (with features essential for adjustment F16H55/52)

Of 10 combined children, 8 exist in both systems.

2 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • F16H 2055/363 2nd only CPC only CPC only
  • F16H 2055/366 2nd only CPC only CPC only
  • F16H 55/38 Means or measures for increasing adhesion IPC+CPC Available in IPC and CPC
  • F16H 55/40 with spokes (F16H55/48 takes precedence) IPC+CPC Available in IPC and CPC
  • F16H 55/42 Laminated pulleys IPC+CPC Available in IPC and CPC
  • F16H 55/44 Sheet-metal pulleys IPC+CPC Available in IPC and CPC
  • F16H 55/46 Split pulleys IPC+CPC Available in IPC and CPC
  • F16H 55/48 manufactured exclusively or in part of non-metallic material, e.g. plastics (F16H55/38, F16H55/42, F16H55/46 take precedence) IPC+CPC Available in IPC and CPC
  • F16H 55/49 Features essential to V-belts pulleys since 1974 IPC+CPC Available in IPC and CPC
  • F16H 55/50 Features essential to rope pulleys 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