Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
F16J 15/32

with elastic sealings, e.g. O-rings

Introduced: September 1968

Last revised: January 2016

Full Title

Sealings > between relatively-moving surfaces > with elastic sealings, e.g. O-rings

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:
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS

8 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • F16J 15/324 Arrangements for lubrication or cooling of the sealing itself
  • F16J 15/3244 with hydrodynamic pumping action
  • F16J 15/328 Manufacturing methods specially adapted for elastic sealings
  • F16J 15/3296 Arrangements for monitoring the condition or operation of elastic sealings; Arrangements for control of elastic sealings, e.g. of their geometry or stiffness

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