CPC Main Group
H01T 4/00 Overvoltage arresters using spark gaps (H01T2/00 takes precedence; overvoltage protection circuits using spark gaps H02H9/06)
6 direct subcodes
Child Classifications
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- H01T 4/02 Details
- H01T 4/04 Housings (H01T4/06 takes precedence)
- H01T 4/06 Mounting arrangements for a plurality of overvoltage arresters
- H01T 4/08 structurally associated with protected apparatus (with switches H01H9/14; with fuses H01H85/44)
- H01T 4/10 having a single gap or a plurality of gaps in parallel
- H01T 4/16 having a plurality of gaps arranged in series
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