of the atmosphere, e.g. composition or pressure in a building chamber

Full Title

Additive manufacturing of workpieces or articles from metallic powder (apparatus or devices therefor B22F12/00) > Process control > of the atmosphere, e.g. composition or pressure in a building chamber

1 direct subcode

Child Classifications

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B22F 10/322 of the gas flow, e.g. rate or direction

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