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DIFF Subgroup
F16L 37/244

the coupling being co-axial with the pipe

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Couplings of the quick-acting type > in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action > the coupling being co-axial with the pipe

CPC:

Couplings of the quick-acting type ( radially-binding sleeves F16L17/04, F16L21/06; connecting hoses to rigid members F16L33/00) > in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action > the coupling being co-axial with the pipe

Of 3 combined children, 2 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 1990.

Child Classifications

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  • F16L 37/2445 CPC only CPC only
  • F16L 37/248 Bayonet-type couplings since 1990 IPC+CPC Available in IPC and CPC
  • F16L 37/252 the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part since 1990 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class F16,2013–2023, worldwide · Source: EPO PATSTAT

  1. SCHAEFFLER TECHNOLOGIES & COMPANY DE 22,817
  2. ZAHNRADFABRIK FRIEDRICHSHAFEN DE 10,523
  3. HYUNDAI MOTOR COMPANY KR 7,933
  4. ROBERT BOSCH DE 7,059
  5. KIA MOTORS CORPORATION KR 4,867
  6. SKF SE 4,729
  7. TOYOTA MOTOR CORPORATION JP 4,111
  8. FORD GLOBAL TECHNOLOGIES US 3,838
  9. GM GLOBAL TECHNOLOGY OPERATIONS US 3,575
  10. TOYOTA MOTOR CORPORATION 3,499