CPC Subgroup Additional Only
H01J 2893/0033 Vacuum connection techniques applicable to discharge tubes and lamps
Full Title
Discharge tubes and lamps > Vacuum connection techniques applicable to discharge tubes and lamps
5 direct subcodes
Child Classifications
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- H01J 2893/0034 Lamp bases
- H01J 2893/0037 Solid sealing members other than lamp bases
- H01J 2893/0045 Non-solid connections, e.g. liquid or rubber
- H01J 2893/0046 Lamp base with closure
- H01J 2893/0047 Closure other than lamp base
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