IPC Subgroup
H01T 13/02 Details
Introduced: September 1968
Last revised: January 2006
Full Title
Sparking plugs > Details
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
Filing statistics
IPC H01T 13/02 belongs to the parent subclass H01T, which recorded 19,856 patent applications worldwide between 2013 and 2023. Annual filings declined from 1,542 in 2013 to 1,440 in 2023 (-7%), peaking at 2,172 applications in 2020. 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
7 direct subcodes
Child Classifications
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- H01T 13/04 Means providing electrical connection to sparking plugs
- H01T 13/06 Covers forming a part of the plug and protecting it against adverse environment
- H01T 13/08 Mounting, fixing, or sealing of sparking plugs, e.g. in combustion chamber
- H01T 13/12 Means on sparking plugs for facilitating engagement by tool or by hand
- H01T 13/14 Means for self-cleaning
- H01T 13/16 Means for dissipating heat
- H01T 13/18 Means for heating, e.g. for drying
Top Applicants
Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
- SAMSUNG ELECTRONICS COMPANY KR 42,206
- LG CHEM KR 21,383
- APPLIED MATERIALS US 20,441
- LG ENERGY SOLUTION KR 20,279
- SAMSUNG DISPLAY KR 19,725
- CHINESE ACADEMY OF SCIENCES 19,400
- TOYOTA MOTOR CORPORATION 18,819
- SGCC(STATE GRID CORPORATION OF CHINA) 18,082
- TOKYO ELECTRON JP 17,634