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IPC Subgroup
H01J 11/1

AC-PDPs with at least one main electrode being out of contact with the plasma

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 > AC-PDPs with at least one main electrode being out of contact with the plasma

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC ELEMENTS
Subclass:
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

4 direct subcodes

Child Classifications

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  • H01J 11/12 with main electrodes provided on both sides of the discharge space
  • H01J 11/14 with main electrodes provided only on one side of the discharge space
  • H01J 11/16 with main electrodes provided inside or on the side face of the spacers
  • H01J 11/18 containing a plurality of independent closed structures for containing the gas, e.g. plasma tube array [PTA] display panels

Top Applicants

Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
  2. SAMSUNG ELECTRONICS COMPANY KR 42,206
  3. LG CHEM KR 21,383
  4. APPLIED MATERIALS US 20,441
  5. LG ENERGY SOLUTION KR 20,279
  6. SAMSUNG DISPLAY KR 19,725
  7. CHINESE ACADEMY OF SCIENCES 19,400
  8. TOYOTA MOTOR CORPORATION 18,819
  9. SGCC(STATE GRID CORPORATION OF CHINA) 18,082
  10. TOKYO ELECTRON JP 17,634