DIFF Subgroup
B22F 10/20 Direct sintering or melting
Introduced: January 2021
Full Title
Full titles differ between systems:
IPC:
Additive manufacturing of workpieces or articles from metallic powder > Direct sintering or melting
CPC:
Additive manufacturing of workpieces or articles from metallic powder (apparatus or devices therefor B22F12/00) > Direct sintering or melting
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 2021.
Child Classifications
Navigate with arrow keys, Enter to open
- B22F 10/25 Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS] since 2021 IPC+CPC Available in IPC and CPC
- B22F 10/28 Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] since 2021 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