IPC Subgroup
B27H 5/12 Making bungs from wood; Drilling or reaming bung holes
Introduced: September 1968
Last revised: January 2006
Full Title
Manufacture of tubs, coops or barrels > Finishing barrels, e.g. cutting grooves > Making bungs from wood; Drilling or reaming bung holes
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- Subclass:
- BENDING WOOD OR SIMILAR MATERIAL; COOPERAGE; MAKING WHEELS FROM WOOD OR SIMILAR MATERIAL
Related Keywords
drilling or reaming BUNG(S) holes in wooden barrelsmaking BUNG(S) from woodDRILLING bung holes in wooden barrelsREAMING bung holes in wooden barrels
Top Applicants
Top 10 applicants by patent filingsfor class B27, 2013–2023, worldwide · Source: EPO PATSTAT
- NANJING FORESTRY UNIVERSITY 960
- ROBERT BOSCH DE 762
- HOMAG DE 384
- HARBIN ARTS AND CRAFTS COMPANY 350
- NORTHEAST FORESTRY UNIVERSITY 343
- SWISS KRONO TEC CH 304
- MAKITA CORPORATION 298
- DIEFFENBACHERMASCHINEN- UND ANLAGENBAU DE 296
- VAELINGE INNOVATION SE 287
- HUSQVARNA SE 282