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IPC Main Group
B22C 5/00

Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
CASTING; POWDER METALLURGY
Subclass:
FOUNDRY MOULDING

Related Keywords

treating foundry SAND

8 direct subcodes

Child Classifications

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  • B22C 5/02 Dressing by centrifuging essentially or additionally
  • B22C 5/04 by grinding, blending, mixing, kneading, or stirring
  • B22C 5/06 by sieving or magnetic separating
  • B22C 5/08 by sprinkling, cooling, or drying
  • B22C 5/1 by dust separating
  • B22C 5/18 Plants for preparing mould materials

Top Applicants

Top 10 applicants by patent filingsfor class B22, 2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 1,719
  2. CHINESE ACADEMY OF SCIENCES 1,489
  3. POSCO (POHANG IRON AND STEEL COMPANY) KR 1,248
  4. TOYOTA MOTOR CORPORATION 1,043
  5. SIEMENS DE 1,028
  6. CENTRAL SOUTH UNIVERSITY 959
  7. HEWLETT-PACKARD DEVELOPMENT COMPANY US 891
  8. UNITED TECHNOLOGIES CORPORATION (UTC) US 786
  9. UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING 769
  10. JFE STEEL JP 761