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 5/12 for filling flasks
- B22C 5/14 Equipment for storing or handling the dressed mould material, forming part of a plant for preparing such material
- B22C 5/18 Plants for preparing mould materials
Top Applicants
Top 10 applicants by patent filingsfor class B22, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 1,719
- CHINESE ACADEMY OF SCIENCES 1,489
- POSCO (POHANG IRON AND STEEL COMPANY) KR 1,248
- TOYOTA MOTOR CORPORATION 1,043
- SIEMENS DE 1,028
- CENTRAL SOUTH UNIVERSITY 959
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 891
- UNITED TECHNOLOGIES CORPORATION (UTC) US 786
- UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING 769
- JFE STEEL JP 761