CPC Main Group
B43M 7/00 Devices for opening envelopes (cutting tools in general B26)
Filing statistics
CPC B43M 7/00 belongs to the parent subclass B43M, which recorded 2,221 patent applications worldwide between 2013 and 2023. Annual filings declined from 248 in 2013 to 76 in 2023 (-69%), peaking at 378 applications in 2017. The most active applicants in class B43 are SOCIETE BIC (422 applications), MITSUBISHI PENCIL COMPANY (381 applications) and PILOT CORPORATION (299 applications).
Source: EPO PATSTAT, worldwide filings
7 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- B43M 7/02 Devices for both opening envelopes and removing contents
Top Applicants
Top 10 applicants by patent filingsfor class B43, 2013–2023, worldwide · Source: EPO PATSTAT
- SOCIETE BIC FR 422
- MITSUBISHI PENCIL COMPANY JP 381
- PILOT CORPORATION JP 299
- MITSUBISHI PENCIL COMPANY 213
- PILOT CORPORATION 100
- WACOM COMPANY JP 89
- STAEDTLER MARS & COMPANY DE 87
- KOTOBUKI JP 82
- CRAYOLA US 78
- SANFORD US 73