IPC Subgroup
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
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