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DIFF Main Group
C22C 1/00

Making non-ferrous alloys (by electrothermic methods C22B4/00; by electrolysis C25C1/24, C25C3/36)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Making non-ferrous alloys

CPC: Making non-ferrous alloys (by electrothermic methods C22B4/00; by electrolysis C25C1/24, C25C3/36)

Full Title

Full titles differ between systems:

IPC:

Making non-ferrous alloys

CPC:

Making non-ferrous alloys (by electrothermic methods C22B4/00; by electrolysis C25C1/24, C25C3/36)

Additional Content IPC

Glossary

in situ formation the phase formed (whether metal or non-metal) is not added in advance, but is generated in situ in the matrix by reaction during the entire process of preparing the alloy, including powder treatment, sintering, etc. reaction sintering the powder raw material undergoes a chemical reaction at a certain temperature and simultaneously performs densification and synthesis of the specified components to obtain a predetermined sintered body.

Limiting references

Making non-ferrous alloys by electrothermic methods Making non-ferrous alloys by electrolysis ,

Of 8 combined children, 7 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • C22C 1/007 CPC only CPC only
  • C22C 1/06 with the use of special agents for refining or deoxidising IPC+CPC Available in IPC and CPC
  • C22C 1/11 Making amorphous alloys since 2023 IPC+CPC Available in IPC and CPC
  • C22C 1/12 by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase since 2023 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class C22,2013–2023, worldwide · Source: EPO PATSTAT

  1. JFE STEEL JP 7,152
  2. NIPPON STEEL CORPORATION JP 5,416
  3. POSCO (POHANG IRON AND STEEL COMPANY) KR 4,530
  4. JFE STEEL 3,986
  5. CENTRAL SOUTH UNIVERSITY 3,086
  6. NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 2,843
  7. CHINESE ACADEMY OF SCIENCES 2,702
  8. ARCELORMITTAL LU 2,124
  9. NSSMC (NIPPON STEEL & SUMITOMO METAL) 2,075
  10. KOBE STEEL JP 1,891

Top Applicants (CPC)

Class C22,2013–2023, worldwide · Source: EPO PATSTAT

  1. JFE STEEL JP 7,620
  2. NIPPON STEEL CORPORATION JP 5,769
  3. POSCO (POHANG IRON AND STEEL COMPANY) KR 4,523
  4. JFE STEEL 3,080
  5. NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 2,999
  6. ARCELORMITTAL LU 2,962
  7. CENTRAL SOUTH UNIVERSITY 2,431
  8. KOBE STEEL JP 2,100
  9. CHINESE ACADEMY OF SCIENCES 2,052
  10. MITSUBISHI MATERIALS CORPORATION JP 1,405