DIFF Subgroup
B31B 70/74 Auxiliary operations
Introduced: January 2017
Full Title
Making flexible containers, e.g. envelopes or bags > Auxiliary operations
Of 6 combined children, 4 exist in both systems.
2 codes are CPC-only extensions.
IPC defines codes here since 2017.
Child Classifications
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- B31B 70/81 Forming or attaching accessories, e.g. opening devices, closures or tear strings since 2017 +2 CPC IPC+CPC Available in IPC and CPC
- B31B 70/86 Forming integral handles or mounting separate handles since 2017 +4 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B31,2013–2023, worldwide · Source: EPO PATSTAT
- GPI (GRAPHIC PACKAGING INTERNATIONAL) US 356
- KIMBERLY-CLARK CORPORATION US 296
- RANPAK CORPORATION US 257
- P&G (PROCTER & GAMBLE COMPANY) US 228
- BOBST MEX CH 218
- JIANGSU NANJIANG MACHINERY COMPANY 214
- SINOTECHO (WUHAN) INTELLIGENT TECHNOLOGY COMPANY 209
- DONGGUAN HONGMING MACHINERY COMPANY 195
- BHS CORRUGATED MASCHINEN- UND ANLAGENBAU DE 192
- TETRA LAVAL HOLDINGS & FINANCE CH 183
Top Applicants (CPC)
Class B31,2013–2023, worldwide · Source: EPO PATSTAT
- GPI (GRAPHIC PACKAGING INTERNATIONAL) US 496
- P&G (PROCTER & GAMBLE COMPANY) US 403
- KIMBERLY-CLARK CORPORATION US 332
- RANPAK CORPORATION US 279
- PULPAC SE 256
- BOBST MEX CH 251
- TETRA LAVAL HOLDINGS & FINANCE CH 246
- PREGIS INNOVATIVE PACKAGING US 210
- WESTROCK SHARED SERVICES US 204
- BHS CORRUGATED MASCHINEN- UND ANLAGENBAU DE 198