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IPC Subgroup
F16H 25/2

Screw mechanisms

Introduced: September 1968

Last revised: January 2006

Full Title

Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms > for conveying or interconverting oscillating or reciprocating motions > Screw mechanisms

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:
GEARING

Related Keywords

SCREW(S) mechanisms as gearing

2 direct subcodes

Child Classifications

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  • F16H 25/22 with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
  • F16H 25/24 Elements essential to such mechanisms, e.g. screws, nuts

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