C22C 1/05 Mixtures of metal powder with non-metallic powder (C22C1/08 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Mixtures of metal powder with non-metallic powder
CPC: Mixtures of metal powder with non-metallic powder (C22C1/08 takes precedence)
Full Title
Full titles differ between systems:
Making non-ferrous alloys > by powder metallurgy > Mixtures of metal powder with non-metallic powder
Making non-ferrous alloys (by electrothermic methods C22B4/00; by electrolysis C25C1/24, C25C3/36) > by powder metallurgy (C22C1/08 takes precedence) > Mixtures of metal powder with non-metallic powder (C22C1/08 takes precedence)
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 2023.
Child Classifications
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- C22C 1/051 Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor since 2023 IPC+CPC Available in IPC and CPC
- C22C 1/059 Making alloys comprising less than 5% by weight of dispersed reinforcing phases since 2023 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C22,2013–2023, worldwide · Source: EPO PATSTAT
- JFE STEEL JP 7,152
- NIPPON STEEL CORPORATION JP 5,416
- POSCO (POHANG IRON AND STEEL COMPANY) KR 4,530
- JFE STEEL 3,986
- CENTRAL SOUTH UNIVERSITY 3,086
- NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 2,843
- CHINESE ACADEMY OF SCIENCES 2,702
- ARCELORMITTAL LU 2,124
- NSSMC (NIPPON STEEL & SUMITOMO METAL) 2,075
- KOBE STEEL JP 1,891
Top Applicants (CPC)
Class C22,2013–2023, worldwide · Source: EPO PATSTAT
- JFE STEEL JP 7,620
- NIPPON STEEL CORPORATION JP 5,769
- POSCO (POHANG IRON AND STEEL COMPANY) KR 4,523
- JFE STEEL 3,080
- NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 2,999
- ARCELORMITTAL LU 2,962
- CENTRAL SOUTH UNIVERSITY 2,431
- KOBE STEEL JP 2,100
- CHINESE ACADEMY OF SCIENCES 2,052
- MITSUBISHI MATERIALS CORPORATION JP 1,405