Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00

Filing statistics

CPC H01J 29/00 belongs to the parent subclass H01J, which recorded 135,587 patent applications worldwide between 2013 and 2023. Annual filings grew from 10,933 in 2013 to 11,751 in 2023 (+7%), peaking at 14,583 applications in 2021. The most active applicants in class H01 are SAMSUNG ELECTRONICS COMPANY (37,897 applications), TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (36,116 applications) and APPLIED MATERIALS (21,640 applications).

Source: EPO PATSTAT, worldwide filings

11 direct subcodes

Child Classifications

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H01J 29/003
H01J 29/006
H01J 29/02 Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
H01J 29/46 Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
H01J 29/84 Arrangements for removing or diverting unwanted particles, e.g. for negative ions or fringing electrons; Arrangements for velocity or mass selection
H01J 29/86 Vessels; Containers; Vacuum locks
H01J 29/90 Leading-in arrangements; Seals therefor
H01J 29/92 Means forming part of the tube for the purpose of providing electrical connection to it
H01J 29/94 Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
H01J 29/96 One or more circuit elements structurally associated with the tube
H01J 29/98 Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

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