IPC Main Group
C22C 45/00 Amorphous alloys
Introduced: January 1990
Last revised: January 2023
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- Subclass:
- ALLOYS
Related Keywords
amorphous ALLOYS
5 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- C22C 45/02 with iron as the major constituent
- C22C 45/04 with nickel or cobalt as the major constituent
- C22C 45/06 with beryllium as the major constituent
- C22C 45/08 with aluminium as the major constituent
- C22C 45/1 with molybdenum, tungsten, niobium, tantalum, titanium, or zirconium as the major constituent
Top Applicants
Top 10 applicants by patent filingsfor 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