CPC Subgroup Additional Only
H01J 2229/8913 Anti-reflection, anti-glare, viewing angle and contrast improving treatments or devices
Full Title
Details of cathode ray tubes or electron beam tubes (H01J2329/00 takes precedence) > Optical components associated with the vessel > Anti-reflection, anti-glare, viewing angle and contrast improving treatments or devices
5 direct subcodes
Child Classifications
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- H01J 2229/8915 Surface treatment of vessel or device, e.g. controlled surface roughness
- H01J 2229/8916 inside the vessel
- H01J 2229/8918 by using interference effects
- H01J 2229/892 Effect varying over surface
- H01J 2229/8922 Apparatus attached to vessel and not integral therewith
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