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PCE
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DIFF Subgroup
H01J 61/24

Means for obtaining or maintaining the desired pressure within the vessel

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Gas-discharge or vapour-discharge lamps > Details > Means for obtaining or maintaining the desired pressure within the vessel

CPC:

Gas-discharge or vapour-discharge lamps (arc lamps with consumable electrodes H05B; electroluminescent lamps H05B) > Details > Means for obtaining or maintaining the desired pressure within the vessel

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • H01J 61/26 Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope IPC+CPC Available in IPC and CPC
  • H01J 61/28 Means for producing, introducing, or replenishing gas or vapour during operation of the lamp IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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