Inventor
LIAO HAIMING
CN5 patents
Patents
5 patentsUS12181525B2Dec 31, 2024
Field detection device, system and method for achieving no maintenance of gas density relay
SHANGHAI ROYE ELECTRIC CO LTD0 citations48
US12136530B2Nov 5, 2024
Transformation method for gas density relay, and gas density relay having online self-check function and check method thereof
SHANGHAI ROYE ELECTRIC CO LTD0 citations47
US12038480B2Jul 16, 2024
Electrical system with on-line sampling verification function and verification method thereof
SHANGHAI ROYE ELECTRIC CO LTD0 citations47
US11988713B2May 21, 2024
Contact signal acquisition circuit for on-site on-line check of gas density relay
SHANGHAI ROYE ELECTRIC CO LTD0 citations47
US12276699B2Apr 15, 2025
Gas density relay with online self-checking function and checking method therefor
SHANGHAI ROYE ELECTRIC CO LTD0 citations46