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PCE
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CPC Subgroup
H01J 7/24

Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space

Full Title

Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps > Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space

2 direct subcodes

Child Classifications

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  • H01J 7/26 by flow of fluid through passages associated with tube or lamp
  • H01J 7/28 by latent heat or evaporation of cooling liquid

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