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DIFF Subgroup
F16C 3/22

Cranks; Eccentrics (constructional features of crank-pins F16C11/02)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Cranks; Eccentrics

CPC: Cranks; Eccentrics (constructional features of crank-pins F16C11/02)

Full Title

Full titles differ between systems:

IPC:

Shafts; Axles; Cranks; Eccentrics > Crankshafts, eccentric-shafts; Cranks, eccentrics > Cranks; Eccentrics

CPC:

Shafts (flexible shafts F16C1/00; marine propeller shafts, paddle wheel shafts B63H23/34); Axles; Cranks; Eccentrics > Crankshafts, eccentric-shafts; Cranks, eccentrics > Cranks; Eccentrics (constructional features of crank-pins F16C11/02)

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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  • F16C 3/24 with return cranks, i.e. a second crank carried by the crank-pin IPC+CPC Available in IPC and CPC
  • F16C 3/26 Elastic crank-webs; Resiliently-mounted crank-pins IPC+CPC Available in IPC and CPC
  • F16C 3/28 Adjustable cranks or eccentrics IPC+CPC Available in IPC and CPC
  • F16C 3/30 with arrangements for overcoming dead-centres 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