CPC Subgroup
B31B 50/74 Auxiliary operations
Full Title
Making rigid or semi-rigid containers, e.g. boxes or cartons > Auxiliary operations
6 direct subcodes
Child Classifications
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- B31B 50/76 Opening and distending flattened articles
- B31B 50/81 Forming or attaching accessories, e.g. opening devices, closures or tear strings
- B31B 50/88 Printing; Embossing
- B31B 50/92 Delivering
Top Applicants
Top 10 applicants by patent filingsfor 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