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IPC Main Group
H01K 5/00

Lamps for general lighting

Introduced: September 1968

Last revised: January 2006

Classification Context

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

Filing statistics

IPC H01K 5/00 belongs to the parent subclass H01K, which recorded 2,283 patent applications worldwide between 2013 and 2023. Annual filings declined from 366 in 2013 to 105 in 2023 (-71%). The most active applicants in class H01 are TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (43,574 applications), SAMSUNG ELECTRONICS COMPANY (42,206 applications) and LG CHEM (21,383 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

electric incandescent lampselectric incandescent lamps for LIGHTING

1 direct subcode

Child Classifications

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  • H01K 5/02 with connections made at opposite ends, e.g. tubular lamp with axially arranged filament

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