DIFF Main Group
B22F 1/00 Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
Introduced: September 1968
Additional Content IPC
"Nanosize” or “nanoscale” nanosize nanoscale nanosized relate to a controlled geometrical size below 100 nanometres (nm) in one or more dimensions.
Of 11 combined children, 10 exist in both systems.
1 codes are CPC-only extensions.
5 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2022.
Child Classifications
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- B22F 1/05 Metallic powder characterised by the size or surface area of the particles since 2022 IPC+CPC Available in IPC and CPC
- B22F 1/06 Metallic powder characterised by the shape of the particles (nanosized particles B22F1/054) since 2022 IPC+CPC Available in IPC and CPC
- B22F 1/07 Metallic powder characterised by particles having a nanoscale microstructure (nanosized particles B22F1/054) since 2022 IPC+CPC Available in IPC and CPC
- B22F 1/08 Metallic powder characterised by particles having an amorphous microstructure since 2022 IPC+CPC Available in IPC and CPC
- B22F 1/10 Metallic powder containing lubricating or binding agents; Metallic powder containing organic material since 2022 +1 CPC IPC+CPC Available in IPC and CPC
- B22F 1/12 Metallic powder containing non-metallic particles (containing lubricating or binding agents or organic material B22F1/10) since 2022 IPC+CPC Available in IPC and CPC
- B22F 1/14 Treatment of metallic powder (mixing with lubricating or binding agents or with organic material B22F1/10) since 2022 IPC+CPC Available in IPC and CPC
- B22F 1/16 Metallic particles coated with a non-metal (coated with lubricating or binding agents or with organic material B22F1/10) since 2022 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
Class B22,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 2,157
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 1,633
- SIEMENS DE 1,267
- POSCO (POHANG IRON AND STEEL COMPANY) KR 1,124
- CHINESE ACADEMY OF SCIENCES 1,040
- UNITED TECHNOLOGIES CORPORATION (UTC) US 1,015
- JFE STEEL JP 884
- CENTRAL SOUTH UNIVERSITY 810
- HITACHI METALS JP 641
- SINTOKOGIO JP 624