CPC Subgroup
H01F 27/12 Oil cooling
Full Title
Details of transformers or inductances, in general > Cooling (heat-transfer elements F28F); Ventilating (structural details of casings H01F27/02) > Liquid cooling > Oil cooling
2 direct subcodes
Child Classifications
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- H01F 27/14 Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Top Applicants
Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 37,897
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
- APPLIED MATERIALS US 21,640
- LG ENERGY SOLUTION KR 20,770
- LG CHEM KR 19,835
- TOKYO ELECTRON JP 18,519
- ROBERT BOSCH DE 14,595
- INTEL CORPORATION US 13,580
- MURATA MANUFACTURING COMPANY JP 12,151
- SAMSUNG SDI COMPANY KR 12,080