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IPC Main Group
F16K 35/00

Means to prevent accidental or unauthorised actuation

Introduced: September 1968

Last revised: January 2006

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:
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING

8 direct subcodes

Child Classifications

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  • F16K 35/02 to be locked or disconnected by means of a push or pull
  • F16K 35/04 yieldingly resisting the actuation
  • F16K 35/06 using a removable actuating or locking member, e.g. a key
  • F16K 35/08 requiring setting according to a code, e.g. permutation locks
  • F16K 35/1 with locking caps or locking bars
  • F16K 35/12 with sealing wire
  • F16K 35/14 interlocking two or more valves
  • F16K 35/16 with locking member actuated by magnet

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