CPC Subgroup
H01J 19/54 Vessels; Containers; Shields associated therewith
Full Title
Details of vacuum tubes of the types covered by group H01J21/00 > Vessels; Containers; Shields associated therewith
2 direct subcodes
Child Classifications
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- H01J 19/56 characterised by the material of the vessel or container
- H01J 19/57 provided with coatings on the walls thereof; Selection of materials for the coatings
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