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IPC Main Group
B22D 13/00

Centrifugal casting; Casting by using centrifugal force

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
CASTING; POWDER METALLURGY
Subclass:
CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES

Related Keywords

CENTRIFUGAL casting of metal or casting using CENTRIFUGAL force

6 direct subcodes

Child Classifications

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  • B22D 13/02 of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
  • B22D 13/04 of shallow solid or hollow bodies, e.g. wheels or rings, in moulds rotating around their axis of symmetry
  • B22D 13/06 of solid or hollow bodies in moulds rotating around an axis arranged outside of the mould
  • B22D 13/08 in which a stationary mould is fed from a rotating mass of liquid metal
  • B22D 13/1 Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor; Means for feeding molten metal, cleansing moulds or removing castings
  • B22D 13/12 Controlling, supervising, specially adapted to centrifugal casting, e.g. for safety reasons

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