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PCE
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DIFF Subgroup
F16L 55/10

Means for stopping flow in pipes or hoses (F16L29/00, F16L37/28 take precedence; valves F16K)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Means for stopping flow in pipes or hoses

CPC: Means for stopping flow in pipes or hoses (F16L29/00, F16L37/28 take precedence; valves F16K)

Full Title

Full titles differ between systems:

IPC:

Devices or appurtenances for use in, or in connection with, pipes or pipe systems > Means for stopping flow in pipes or hoses

CPC:

Devices or appurtenances for use in, or in connection with, pipes or pipe systems (F16L1/00 - F16L53/00, F16L57/00, F16L59/00 take precedence; repairing or joining pipes on or under water F16L1/26; cleaning of pipes B08B9/02, e.g. removal of blockages B08B9/027; devices for preventing bursting of water pipes by freezing E03B7/10) > Means for stopping flow in pipes or hoses (F16L29/00, F16L37/28 take precedence; valves F16K)

CPC subdivides this area 2x more granularly than IPC with 7 additional codes.

7 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • F16L 55/1003 CPC only CPC only
  • F16L 55/1007 CPC only CPC only
  • F16L 55/1011 CPC only CPC only
  • F16L 55/1015 CPC only CPC only
  • F16L 55/1018 CPC only CPC only
  • F16L 55/1022 CPC only CPC only
  • F16L 55/1026 CPC only CPC only
  • F16L 55/103 by temporarily freezing liquid sections in the pipe since 2000 IPC+CPC Available in IPC and CPC
  • F16L 55/105 Closing devices introduced radially into the pipe or hose 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