by the flat-tyre method, i.e. building on cylindrical drums

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 > by the flat-tyre method, i.e. building on cylindrical drums

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 > by the flat-tyre method, i.e. building on cylindrical drums

CPC subdivides this area 3x more granularly than IPC with 9 additional codes.

9 codes are CPC-only extensions.

Note: 9 CPC extensions are marked as secondary classification only.

IPC defines codes here since 1985.

Child Classifications

Navigate with arrow keys, Enter to open

B29D 2030/201 2nd only CPC only CPC only
B29D 2030/202 2nd only CPC only CPC only
B29D 2030/203 2nd only CPC only CPC only
B29D 2030/204 2nd only CPC only CPC only
B29D 2030/205 2nd only CPC only CPC only
B29D 2030/206 2nd only CPC only CPC only
B29D 2030/207 2nd only CPC only CPC only
B29D 2030/208 2nd only CPC only CPC only
B29D 2030/209 2nd only CPC only CPC only
B29D 30/22 Breaker plies being applied in the unexpanded state since 1985 IPC+CPC Available in IPC and CPC
B29D 30/24 Drums since 1985 +3 CPC IPC+CPC Available in IPC and CPC
B29D 30/28 Rolling-down or pressing-down the layers in the building process since 1985 IPC+CPC Available in IPC and CPC
B29D 30/30 Applying the layers; Guiding or stretching the layers during application since 1985 +9 CPC IPC+CPC Available in IPC and CPC
B29D 30/32 Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores since 1985 +5 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

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

Top Applicants (CPC)

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

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