IPC Main Group
H01T 13/00 Sparking plugs
Introduced: September 1968
Last revised: January 2006
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 13/00 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
Related Keywords
sparking PLUGS
10 direct subcodes
Child Classifications
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- H01T 13/02 Details
- H01T 13/2 characterised by features of the electrodes or insulation
- H01T 13/4 structurally combined with other devices
- H01T 13/46 having two or more spark gaps
- H01T 13/48 having means for rendering sparks visible
- H01T 13/5 having means for ionisation of gap
- H01T 13/52 characterised by a discharge along a surface
- H01T 13/54 having electrodes arranged in a partly-enclosed ignition chamber
- H01T 13/56 characterised by having component parts which are easily assembled or disassembled
- H01T 13/58 Testing
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