CPC Subgroup
B43K 24/02 for locking a single writing unit in only fully projected or retracted positions
Full Title
Mechanisms for selecting, projecting, retracting or locking writing units > for locking a single writing unit in only fully projected or retracted positions
6 direct subcodes
Child Classifications
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- B43K 24/03 operated by flicking or tilting
- B43K 24/04 operated by means sliding in longitudinally-slotted casings
- B43K 24/06 operated by turning means
- B43K 24/08 operated by push-buttons
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