Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
F16C 3/22

Cranks; Eccentrics

Introduced: September 1968

Last revised: January 2006

Full Title

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

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
Subclass:
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS

4 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

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

Top Applicants

Top 10 applicants by patent filingsfor 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