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DIFF Main Group
B43L 7/00

Straightedges (guides; curve rulers or templets B43L13/20; straightedges characterised by the provision of indicia or the like for measuring, e.g. rulers or tapes with measuring scales or marks for direct reading, G01B)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Straightedges

CPC: Straightedges (guides; curve rulers or templets B43L13/20; straightedges characterised by the provision of indicia or the like for measuring, e.g. rulers or tapes with measuring scales or marks for direct reading, G01B)

Full Title

Full titles differ between systems:

IPC:

Straightedges

CPC:

Straightedges (guides; curve rulers or templets B43L13/20; straightedges characterised by the provision of indicia or the like for measuring, e.g. rulers or tapes with measuring scales or marks for direct reading, G01B)

Of 9 combined children, 6 exist in both systems.

3 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B43L 7/002 CPC only CPC only
  • B43L 7/005 CPC only CPC only
  • B43L 7/007 CPC only CPC only
  • B43L 7/033 Plural non-adjustable straightedges forming non-right angles since 1990 IPC+CPC Available in IPC and CPC
  • B43L 7/04 with rollers (with interconnected rollers B43L13/02) IPC+CPC Available in IPC and CPC
  • B43L 7/08 with arrangements for attaching additional drawing equipment, e.g. for hatching, dotting IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B43,2013–2023, worldwide · Source: EPO PATSTAT

  1. PILOT CORPORATION 1,100
  2. MITSUBISHI PENCIL COMPANY 818
  3. SOCIETE BIC FR 380
  4. MITSUBISHI PENCIL COMPANY JP 371
  5. PILOT CORPORATION JP 273
  6. DELI GROUP COMPANY 249
  7. SHANGHAI M&G STATIONERY 176
  8. PENTEL 169
  9. ZEBRA PEN CORPORATION 153
  10. GUANGZHOU SHIRUI ELECTRICAL TECHNOLOGY COMPANY 124

Top Applicants (CPC)

Class B43,2013–2023, worldwide · Source: EPO PATSTAT

  1. SOCIETE BIC FR 422
  2. MITSUBISHI PENCIL COMPANY JP 381
  3. PILOT CORPORATION JP 299
  4. MITSUBISHI PENCIL COMPANY 213
  5. PILOT CORPORATION 100
  6. WACOM COMPANY JP 89
  7. STAEDTLER MARS & COMPANY DE 87
  8. KOTOBUKI JP 82
  9. CRAYOLA US 78
  10. SANFORD US 73