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DIFF Subgroup
B29D 30/10

on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Producing pneumatic or solid tyres or parts thereof > Pneumatic tyres or parts thereof > Building tyres > on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre

CPC:

Producing pneumatic or solid tyres or parts thereof (producing inner tubes B29D23/24; constructional form of tyres or parts thereof B60C; connection of valves to inflatable elastic bodies B60C29/00; testing of tyres G01M17/02) > Pneumatic tyres or parts thereof > Building tyres > on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre

Of 5 combined children, 4 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

IPC defines codes here since 1985.

Child Classifications

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  • B29D 2030/105 2nd only CPC only CPC only
  • B29D 30/12 Cores since 1985 IPC+CPC Available in IPC and CPC
  • B29D 30/14 Rolling-down or pressing-down the layers in the building process since 1985 IPC+CPC Available in IPC and CPC
  • B29D 30/18 Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores since 1985 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B29,2013–2023, worldwide · Source: EPO PATSTAT

  1. HEWLETT-PACKARD DEVELOPMENT COMPANY US 3,802
  2. BOEING COMPANY US 3,087
  3. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 2,315
  4. SUMITOMO RUBBER IND 1,784
  5. GE (GENERAL ELECTRIC COMPANY) US 1,663
  6. CANON 1,658
  7. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,587
  8. TORAY INDUSTRIES JP 1,555
  9. BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,470
  10. LG CHEM KR 1,415

Top Applicants (CPC)

Class B29,2013–2023, worldwide · Source: EPO PATSTAT

  1. HEWLETT-PACKARD DEVELOPMENT COMPANY US 4,167
  2. BOEING COMPANY US 3,701
  3. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 2,554
  4. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 2,240
  5. TORAY INDUSTRIES JP 2,133
  6. GE (GENERAL ELECTRIC COMPANY) US 2,069
  7. BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,028
  8. LG CHEM KR 1,962
  9. DOW GLOBAL TECHNOLOGIES US 1,896
  10. CONTINENTAL REIFEN DE 1,725