H01J 11/2 Constructional details
Introduced: January 2012
Full Title
Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel > Constructional details
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
Filing statistics
IPC H01J 11/2 belongs to the parent subclass H01J, which recorded 110,789 patent applications worldwide between 2013 and 2023. Annual filings grew from 9,068 in 2013 to 10,705 in 2023 (+18%), peaking at 11,872 applications in 2021. The most active applicants in class H01 are TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (43,574 applications), SAMSUNG ELECTRONICS COMPANY (42,206 applications) and LG CHEM (21,383 applications).
Source: EPO PATSTAT, worldwide filings
7 direct subcodes
Child Classifications
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- H01J 11/22 Electrodes, e.g. special shape, material or configuration
- H01J 11/34 Vessels, containers or parts thereof, e.g. substrates
- H01J 11/46 Connecting or feeding means, e.g. leading-in conductors
- H01J 11/48 Sealing, e.g. seals specially adapted for leading-in conductors
- H01J 11/5 Filling, e.g. selection of gas mixture
- H01J 11/52 Means for absorbing or adsorbing the gas mixture, e.g. by gettering
- H01J 11/54 Means for exhausting the gas
Top Applicants
Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
- SAMSUNG ELECTRONICS COMPANY KR 42,206
- LG CHEM KR 21,383
- APPLIED MATERIALS US 20,441
- LG ENERGY SOLUTION KR 20,279
- SAMSUNG DISPLAY KR 19,725
- CHINESE ACADEMY OF SCIENCES 19,400
- TOYOTA MOTOR CORPORATION 18,819
- SGCC(STATE GRID CORPORATION OF CHINA) 18,082
- TOKYO ELECTRON JP 17,634