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IPC Subgroup
B24B 3/55

of knife bars for harvesting machines

Introduced: September 1968

Last revised: January 2006

Full Title

Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools > of knife bars for harvesting machines

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

Filing statistics

IPC B24B 3/55 belongs to the parent subclass B24B, which recorded 374,261 patent applications worldwide between 2013 and 2023. Annual filings grew from 11,659 in 2013 to 54,026 in 2023 (+363%), peaking at 56,882 applications in 2020. The most active applicants in class B24 are DISCO ABRASIVE SYSTEM (3,084 applications), APPLIED MATERIALS (1,570 applications) and EBARA CORPORATION (1,393 applications).

Source: EPO PATSTAT, worldwide filings

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