IPC Main Group
B22D 3/00 Pig or like casting
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- CASTING; POWDER METALLURGY
- Subclass:
- CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
Filing statistics
IPC B22D 3/00 belongs to the parent subclass B22D, which recorded 144,032 patent applications worldwide between 2013 and 2023. Annual filings grew from 8,344 in 2013 to 16,940 in 2023 (+103%), peaking at 17,691 applications in 2020. The most active applicants in class B22 are GE (GENERAL ELECTRIC COMPANY) (1,719 applications), CHINESE ACADEMY OF SCIENCES (1,489 applications) and POSCO (POHANG IRON AND STEEL COMPANY) (1,248 applications).
Source: EPO PATSTAT, worldwide filings
Related Keywords
casting metal PIG(S)
1 direct subcode
Child Classifications
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- B22D 3/02 Moulding of beds
Top Applicants
Top 10 applicants by patent filingsfor 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