IPC Main Group
B22F 1/00 Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
Introduced: September 1968
Last revised: January 2022
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- CASTING; POWDER METALLURGY
- Subclass:
- WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
Additional Content
"Nanosize” or “nanoscale” nanosize nanoscale nanosized relate to a controlled geometrical size below 100 nanometres (nm) in one or more dimensions.
Related Keywords
METAL(S) powdermetal POWDER
10 direct subcodes
Child Classifications
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- B22F 1/05 Metallic powder characterised by the size or surface area of the particles
- B22F 1/06 Metallic powder characterised by the shape of the particles
- B22F 1/07 Metallic powder characterised by particles having a nanoscale microstructure
- B22F 1/08 Metallic powder characterised by particles having an amorphous microstructure
- B22F 1/1 Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F 1/12 Metallic powder containing non-metallic particles
- B22F 1/14 Treatment of metallic powder
- B22F 1/16 Metallic particles coated with a non-metal
- B22F 1/17 Metallic particles coated with metal
- B22F 1/18 Non-metallic particles coated with metal
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