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PCE
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DIFF Subgroup
B23F 9/06

having a shape similar to a spur-wheel or part thereof

Introduced: September 1968

Title

Titles differ between systems:

IPC: having a shape similar to a spur wheel of part thereof

CPC: having a shape similar to a spur-wheel or part thereof

Full Title

Full titles differ between systems:

IPC:

Making gears having teeth curved in their longitudinal direction > by planing or slotting with reciprocating cutting tools > having a shape similar to a spur wheel of part thereof

CPC:

Making gears having teeth curved in their longitudinal direction > by planing or slotting with reciprocating cutting tools > having a shape similar to a spur-wheel or part thereof

No child classifications to compare. This is a leaf node in both 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