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CPC Main Group
H01J 9/00

Apparatus or processes specially adapted for the manufacture of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps

12 direct subcodes

Child Classifications

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  • H01J 9/236 Manufacture of magnetic deflecting devices for cathode-ray tubes
  • H01J 9/40 Closing vessels
  • H01J 9/42 Measurement or testing during manufacture
  • H01J 9/52 Recovery of material from discharge tubes or lamps (H01J9/50 takes precedence)

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