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IPC Main Group
B24B 39/00

Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
GRINDING; POLISHING
Subclass:
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS

Additional Content

Modifying the physical properties or structure of metal by burnishing ,

Related Keywords

BURNISHING machines or BURNISHING devices requiring pressure members for compacting the surface zonePLANISHING by burnishing

3 direct subcodes

Child Classifications

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  • B24B 39/02 designed for working internal surfaces of revolution
  • B24B 39/04 designed for working external surfaces of revolution
  • B24B 39/06 designed for working plane surfaces

Top Applicants

Top 10 applicants by patent filingsfor 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