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IPC Subgroup
H01K 1/62

One or more circuit elements structurally associated with the lamp

Introduced: September 1968

Last revised: January 2006

Full Title

Details > One or more circuit elements structurally associated with the lamp

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC ELEMENTS
Subclass:
ELECTRIC INCANDESCENT LAMPS

4 direct subcodes

Child Classifications

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  • H01K 1/64 with built-in switch
  • H01K 1/66 with built-in fuse
  • H01K 1/68 with built-in spark gap
  • H01K 1/7 with built-in short-circuiting device, e.g. for serially-connected lamps

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