B22C 5/0427 Full Title
Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose (of general applicability, see the relevant places, e.g. for material with water-setting properties B28C) > by grinding, blending, mixing, kneading, or stirring
Filing statistics
CPC B22C 5/0427 belongs to the parent subclass B22C, which recorded 29,163 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,545 in 2013 to 2,127 in 2023 (+38%), peaking at 3,597 applications in 2018. The most active applicants in class B22 are GE (GENERAL ELECTRIC COMPANY) (2,157 applications), HEWLETT-PACKARD DEVELOPMENT COMPANY (1,633 applications) and SIEMENS (1,267 applications).
Source: EPO PATSTAT, worldwide filings
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