CPC Main Group
B22D 19/00 Casting in, on, or around objects which form part of the product (B22D23/04 takes precedence; alumino-thermic welding B23K23/00; coating by casting molten material on the substrate C23C6/00)
16 direct subcodes
Child Classifications
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- B22D 19/02 for making reinforced articles (B22D19/14 takes precedence)
- B22D 19/04 for joining parts
- B22D 19/06 for manufacturing or repairing tools
- B22D 19/08 for building-up linings or coverings, e.g. of anti-frictional metal
- B22D 19/10 Repairing defective or damaged objects by metal casting procedures (by other procedures B23P6/04; ingot mould B22D7/06; B22D19/06 takes precedence)
- B22D 19/12 for making objects, e.g. hinges, with parts which are movable relatively to one another
- B22D 19/14 the objects being filamentary or particulate in form (making alloys containing fibres or filaments by contacting the fibres or filaments with molten metal C22C47/08)
- B22D 19/16 for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills (casting compound ingots B22D7/02)
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