IPC Subgroup
B43K 29/18 with hand tools, e.g. erasing knives
Introduced: September 1968
Last revised: January 2006
Full Title
Combinations of writing implements with other articles > with hand tools, e.g. erasing knives
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- Subclass:
- IMPLEMENTS FOR WRITING OR DRAWING
Related Keywords
HAND TOOLS combined with writing implementsKNIFE (KNIVES) for erasing combined with writing implements
Top Applicants
Top 10 applicants by patent filingsfor class B43, 2013–2023, worldwide · Source: EPO PATSTAT
- PILOT CORPORATION 1,100
- MITSUBISHI PENCIL COMPANY 818
- SOCIETE BIC FR 380
- MITSUBISHI PENCIL COMPANY JP 371
- PILOT CORPORATION JP 273
- DELI GROUP COMPANY 249
- SHANGHAI M&G STATIONERY 176
- PENTEL 169
- ZEBRA PEN CORPORATION 153
- GUANGZHOU SHIRUI ELECTRICAL TECHNOLOGY COMPANY 124