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DIFF Subgroup
B24B 31/12

Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00

Introduced: September 1968

Title

Titles differ between systems:

IPC: Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group

CPC: Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00

Full Title

Full titles differ between systems:

IPC:

Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is loose; Accessories therefor > Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group

CPC:

Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor (abrasive blasting machines B24C3/26) > Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • B24B 31/14 Abrading-bodies specially designed for tumbling apparatus, e.g. abrading-balls IPC+CPC Available in IPC and CPC
  • B24B 31/16 Means for separating the workpiece from the abrasive medium at the end of operation since 1985 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B24,2013–2023, worldwide · Source: EPO PATSTAT

  1. DISCO ABRASIVE SYSTEM 3,084
  2. APPLIED MATERIALS US 1,570
  3. EBARA CORPORATION JP 1,393
  4. DISCO CORPORATION JP 1,368
  5. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,270
  6. EBARA CORPORATION 1,016
  7. FUJIMI JP 829
  8. ZHEJIANG UNIVERSITY OF TECHNOLOGY 804
  9. ROBERT BOSCH DE 803
  10. SAINT-GOBAIN ABRASIVES US 781

Top Applicants (CPC)

Class B24,2013–2023, worldwide · Source: EPO PATSTAT

  1. DISCO CORPORATION JP 2,092
  2. APPLIED MATERIALS US 1,813
  3. EBARA CORPORATION JP 1,804
  4. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,329
  5. ROBERT BOSCH DE 863
  6. FUJIMI JP 858
  7. SAINT-GOBAIN ABRASIVES US 833
  8. EBARA CORPORATION 810
  9. SAINT-GOBAIN ABRASIVES FR 782
  10. DISCO ABRASIVE SYSTEM 735