CPC Subgroup Additional Only
H01J 2237/0203 Protection arrangements
Full Title
Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging > Details > Protection arrangements
3 direct subcodes
Child Classifications
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- H01J 2237/0206 Extinguishing, preventing or controlling unwanted discharges
- H01J 2237/0209 Avoiding or diminishing effects of eddy currents
- H01J 2237/0213 Avoiding deleterious effects due to interactions between particles and tube elements
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