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CPC Main Group
B23B 41/00

Boring or drilling machines or devices specially adapted for particular work ; Accessories specially adapted therefor

Filing statistics

CPC B23B 41/00 belongs to the parent subclass B23B, which recorded 66,933 patent applications worldwide between 2013 and 2023. Annual filings declined from 4,756 in 2013 to 4,707 in 2023 (-1%), peaking at 7,816 applications in 2018. The most active applicants in class B23 are ITW (ILLINOIS TOOL WORKS) (3,642 applications), DISCO CORPORATION (3,316 applications) and FANUC (3,111 applications).

Source: EPO PATSTAT, worldwide filings

8 direct subcodes

Child Classifications

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  • B23B 41/02 for boring deep holes; Trepanning, e.g. of gun or rifle barrels
  • B23B 41/04 for boring polygonal or other non-circular holes
  • B23B 41/06 for boring conical holes
  • B23B 41/10 for boring holes in steam boilers
  • B23B 41/12 for forming working surfaces of cylinders, of bearings, e.g. in heads of driving rods, or of other engine parts
  • B23B 41/14 for very small holes
  • B23B 41/16 for boring holes with high-quality surface

Top Applicants

Top 10 applicants by patent filingsfor class B23, 2013–2023, worldwide · Source: EPO PATSTAT

  1. ITW (ILLINOIS TOOL WORKS) US 3,642
  2. DISCO CORPORATION JP 3,316
  3. FANUC JP 3,111
  4. ROBERT BOSCH DE 2,711
  5. FANUC 2,163
  6. GE (GENERAL ELECTRIC COMPANY) US 2,113
  7. ISCAR IL 1,516
  8. SIEMENS DE 1,459
  9. LINCOLN GLOBAL US 1,433
  10. KOBE STEEL JP 1,423