Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
F16L 9/14

Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups (F16L9/16 - F16L9/22 take precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups

CPC: Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups (F16L9/16 - F16L9/22 take precedence)

Full Title

Full titles differ between systems:

IPC:

Rigid pipes > Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups

CPC:

Rigid pipes > Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups (F16L9/16 - F16L9/22 take precedence)

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1995.

Child Classifications

Navigate with arrow keys, Enter to open

  • F16L 9/147 comprising only layers of metal and plastics with or without reinforcement since 1995 IPC+CPC Available in IPC and CPC
  • F16L 9/153 comprising only layers of metal and concrete with or without reinforcement since 1995 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