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PCE
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DIFF Subgroup
B23D 51/16

of drives or feed mechanisms for straight tools, e.g. saw blades, or bows

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends > of drives or feed mechanisms for straight tools, e.g. saw blades, or bows

CPC:

Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts (constructional features of these parts per se B23Q; details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00); Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends > of drives or feed mechanisms for straight tools, e.g. saw blades, or bows

CPC subdivides this area 4x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B23D 51/161 CPC only CPC only
  • B23D 51/1615 CPC only CPC only
  • B23D 51/162 CPC only CPC only
  • B23D 51/163 CPC only CPC only
  • B23D 51/166 CPC only CPC only
  • B23D 51/18 actuated by fluid or gas pressure (B23D51/20 takes precedence) IPC+CPC Available in IPC and CPC
  • B23D 51/20 with controlled feed of the tool, or with special arrangements for relieving or lifting the tool on the return stroke IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B23,2013–2023, worldwide · Source: EPO PATSTAT

  1. ITW (ILLINOIS TOOL WORKS) US 3,407
  2. FANUC JP 3,120
  3. DISCO ABRASIVE SYSTEM 2,777
  4. HAN'S LASER TECHNOLOGY INDUSTRY GROUP COMPANY 2,629
  5. ROBERT BOSCH DE 2,468
  6. FANUC 2,273
  7. DISCO CORPORATION JP 2,267
  8. GE (GENERAL ELECTRIC COMPANY) US 1,611
  9. CHINESE ACADEMY OF SCIENCES 1,534
  10. ISCAR IL 1,499

Top Applicants (CPC)

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