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CPC Main Group
H01J 61/00

Gas-discharge or vapour-discharge lamps (arc lamps with consumable electrodes H05B; electroluminescent lamps H05B)

13 direct subcodes

Child Classifications

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  • H01J 61/58 Lamps with both liquid anode and liquid cathode
  • H01J 61/60 Lamps in which the discharge space is substantially filled with mercury before ignition
  • H01J 61/62 Lamps with gaseous cathode, e.g. plasma cathode
  • H01J 61/68 Lamps in which the main discharge is between parts of a current-carrying guide, e.g. halo lamp
  • H01J 61/95 Lamps with control electrode for varying intensity or wavelength of the light, e.g. for producing modulated light
  • H01J 61/96 Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
  • H01J 61/98 Lamps with closely spaced electrodes heated to incandescence by light-emitting discharge, e.g. tungsten arc lamp

Top Applicants

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

  1. SAMSUNG ELECTRONICS COMPANY KR 37,897
  2. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
  3. APPLIED MATERIALS US 21,640
  4. LG ENERGY SOLUTION KR 20,770
  5. LG CHEM KR 19,835
  6. TOKYO ELECTRON JP 18,519
  7. ROBERT BOSCH DE 14,595
  8. INTEL CORPORATION US 13,580
  9. MURATA MANUFACTURING COMPANY JP 12,151
  10. SAMSUNG SDI COMPANY KR 12,080