CPC Subgroup Additional Only
H01J 2209/26 Sealing parts of the vessel to provide a vacuum enclosure
Full Title
Apparatus and processes for manufacture of discharge tubes > Sealing parts of the vessel to provide a vacuum enclosure
3 direct subcodes
Child Classifications
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- H01J 2209/261 Apparatus used for sealing vessels, e.g. furnaces, machines or the like
- H01J 2209/264 Materials for sealing vessels, e.g. frit glass compounds, resins or structures
- H01J 2209/265 Surfaces for sealing vessels
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