CPC Subgroup Additional Only
B22F 2304/05 Submicron size particles
Full Title
Physical aspects of the powder > Submicron size particles
4 direct subcodes
Child Classifications
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- B22F 2304/052 Particle size below 1nm
- B22F 2304/054 Particle size between 1 and 100 nm
- B22F 2304/056 Particle size above 100 nm up to 300 nm
- B22F 2304/058 Particle size above 300 nm up to 1 micrometer
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