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IPC Subgroup
F16L 55/053

the gas in the reservoir being separated from the fluid in the pipe

Introduced: January 2000

Last revised: January 2006

Full Title

Devices or appurtenances for use in, or in connection with, pipes or pipe systems > Devices damping pulsations or vibrations in fluids > specially adapted to prevent or minimise the effects of water hammer > Buffers therefor > Pneumatic reservoirs > the gas in the reservoir being separated from the fluid in the pipe

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:
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL

1 direct subcode

Child Classifications

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  • F16L 55/054 the reservoir being placed in or around the pipe from which it is separated by a sleeve-shaped membrane

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