CPC Subgroup
B22F 7/06 of composite workpieces or articles from parts, e.g. to form tipped tools
Full Title
Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting > of composite workpieces or articles from parts, e.g. to form tipped tools
2 direct subcodes
Child Classifications
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- B22F 7/08 with one or more parts not made from powder
Top Applicants
Top 10 applicants by patent filingsfor 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