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IPC Subgroup
B24B 19/02

for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements

Introduced: September 1968

Last revised: January 2006

Full Title

Single purpose machines or devices for particular grinding operations not covered by any other main group > for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements

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

Related Keywords

RIFLING machines

3 direct subcodes

Child Classifications

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  • B24B 19/03 for grinding grooves in glass workpieces, e.g. decorative grooves
  • B24B 19/04 for fluting drill shanks
  • B24B 19/06 for grinding races, e.g. roller races

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