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DIFF Main Group
F16L 25/00

Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00 (adjustable or allowing movement F16L27/00; with fluid cut-off means F16L29/00; quick-acting F16L37/00; for double-walled or multi-channel pipes F16L39/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00; specially adapted for pipes of brittle material F16L49/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Construction or details of pipe joints not provided for in, or of interest apart from, groups

CPC: Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00 (adjustable or allowing movement F16L27/00; with fluid cut-off means F16L29/00; quick-acting F16L37/00; for double-walled or multi-channel pipes F16L39/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00; specially adapted for pipes of brittle material F16L49/00)

Full Title

Full titles differ between systems:

IPC:

Construction or details of pipe joints not provided for in, or of interest apart from, groups

CPC:

Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00 (adjustable or allowing movement F16L27/00; with fluid cut-off means F16L29/00; quick-acting F16L37/00; for double-walled or multi-channel pipes F16L39/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00; specially adapted for pipes of brittle material F16L49/00)

Of 14 combined children, 7 exist in both systems.

7 codes are CPC-only extensions.

IPC defines codes here since 1974.

Child Classifications

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  • F16L 25/0009 CPC only CPC only
  • F16L 25/0018 CPC only CPC only
  • F16L 25/0027 CPC only CPC only
  • F16L 25/0072 CPC only CPC only
  • F16L 25/0081 CPC only CPC only
  • F16L 25/009 CPC only CPC only
  • F16L 25/01 specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof since 2000 IPC+CPC Available in IPC and CPC
  • F16L 25/04 comprising a collar or ring having a threaded pin rigid with the pipe-encircling member since 1990 IPC+CPC Available in IPC and CPC
  • F16L 25/10 Sleeveless joints between two pipes, one being introduced into the other since 2000 IPC+CPC Available in IPC and CPC
  • F16L 25/12 Joints for pipes being spaced apart axially since 2000 IPC+CPC Available in IPC and CPC
  • F16L 25/14 Joints for pipes of different diameters or cross-section since 2000 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