using other mixers or combinations of dissimilar mixers

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Mixing; Kneading > using other mixers or combinations of dissimilar mixers

CPC:

Mixing; Kneading ( in general B01F; combined with calendering B29C43/24, with injection B29C45/46, with extrusion B29C48/36) > using other mixers or combinations of dissimilar mixers

CPC subdivides this area 5x more granularly than IPC with 7 additional codes.

7 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1985.

Child Classifications

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B29B 7/7404 +2 CPC CPC only CPC only
B29B 7/7438 +3 CPC CPC only CPC only
B29B 7/7457 CPC only CPC only
B29B 7/7461 CPC only CPC only
B29B 7/7466 CPC only CPC only
B29B 7/7471 CPC only CPC only
B29B 7/7476 +3 CPC CPC only CPC only
B29B 7/76 with stream-impingement mixing head since 1985 +5 CPC IPC+CPC Available in IPC and CPC
B29B 7/78 by gravity, e.g. falling particle mixers since 1985 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