IPC Subgroup
H01H 50/36 Stationary parts of magnetic circuit, e.g. yoke
Introduced: September 1968
Last revised: January 2006
Full Title
Details of electromagnetic relays > Magnetic circuit arrangements > Stationary parts of magnetic circuit, e.g. yoke
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
Related Keywords
JIG(S) for electric relays [= yokes]YOKES for relays
3 direct subcodes
Child Classifications
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- H01H 50/38 Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
- H01H 50/4 Branched or multiple-limb main magnetic circuits
- H01H 50/42 Auxiliary magnetic circuits, e.g. for maintaining armature in, or returning armature to, position of rest, for damping or accelerating movement
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