CPC Main Group Additional Only
H01J 2209/00 Apparatus and processes for manufacture of discharge tubes
7 direct subcodes
Child Classifications
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- H01J 2209/01 Generalised techniques
- H01J 2209/02 Manufacture of cathodes
- H01J 2209/18 Assembling together the component parts of the discharge tube
- H01J 2209/236 Manufacture of magnetic deflecting devices
- H01J 2209/26 Sealing parts of the vessel to provide a vacuum enclosure
- H01J 2209/38 Control of maintenance of pressure in the vessel
- H01J 2209/46 Handling of tube components during manufacture
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