IPC Subgroup
H01H 37/32 Thermally-sensitive members
Introduced: September 1968
Last revised: January 2006
Full Title
Thermally-actuated switches > Details > Thermally-sensitive members
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
5 direct subcodes
Child Classifications
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- H01H 37/34 Means for transmitting heat thereto, e.g. capsule remote from contact member
- H01H 37/36 actuated due to expansion or contraction of a fluid with or without vaporisation
- H01H 37/46 actuated due to expansion or contraction of a solid
- H01H 37/52 actuated due to deflection of bimetallic element
- H01H 37/58 actuated due to thermally controlled change of magnetic permeability
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