Non-circular-curve-drawing instruments

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
Subclass:: ARTICLES FOR WRITING OR DRAWING UPON; ACCESSORIES FOR WRITING OR DRAWING

Filing statistics

IPC B43L 11/00 belongs to the parent subclass B43L, which recorded 45,272 patent applications worldwide between 2013 and 2023. Annual filings declined from 2,764 in 2013 to 2,719 in 2023 (-2%), peaking at 6,651 applications in 2020. The most active applicants in class B43 are PILOT CORPORATION (1,100 applications), MITSUBISHI PENCIL COMPANY (818 applications) and SOCIETE BIC (380 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

HARMONOGRAPHS

3 direct subcodes

Child Classifications

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B43L 11/02 for drawing conic sections
B43L 11/06 for drawing spirals
B43L 11/08 for drawing involutes

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