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DIFF Subgroup
F16B 12/44

Leg joints; Corner joints

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Jointing of furniture or the like, e.g. hidden from exterior > Leg joints; Corner joints

CPC:

Jointing of furniture or the like, e.g. hidden from exterior (F16B2/00 - F16B11/00 take precedence; fastening means per se F16B13/00 - F16B47/00; wood-working B27) > Leg joints; Corner joints

Of 6 combined children, 4 exist in both systems.

2 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • F16B 12/48 Non-metal leg connections (F16B12/46 takes precedence) IPC+CPC Available in IPC and CPC
  • F16B 12/52 Metal leg connections (F16B12/50 takes precedence) IPC+CPC Available in IPC and CPC
  • F16B 2012/443 2nd only CPC only CPC only
  • F16B 2012/446 2nd only CPC only CPC only

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