Zhengcao GUO

Person

Shanghai, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Method for modifying gas density relay, and gas density relay havin...
- Patent number 12,154,738
- Issue date Nov 26, 2024
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Haiyong Jin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transformation method for gas density relay, and gas density relay...
- Patent number 12,136,530
- Issue date Nov 5, 2024
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Tiexin Xia
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for modifying gas density relay, and gas density relay havin...
- Patent number 12,099,093
- Issue date Sep 24, 2024
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Min Chang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical system with on-line sampling verification function and v...
- Patent number 12,046,433
- Issue date Jul 23, 2024
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Haiyong Jin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical system with on-line sampling verification function and v...
- Patent number 12,038,480
- Issue date Jul 16, 2024
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Tiexin Xia
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
GAS DENSITY RELAY WITH SEALING PERFORMANCE SELF-CHECKING FUNCTION,...
- Publication number 20230221209
- Publication date Jul 13, 2023
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Haiyong JIN
- G01 - MEASURING TESTING
Information Patent Application
SELF-DIAGNOSTIC GAS DENSITY RELAY AND USE METHOD THEREOF
- Publication number 20230168145
- Publication date Jun 1, 2023
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Haiyong JIN
- G01 - MEASURING TESTING
Information Patent Application
METHOD FOR MODIFYING GAS DENSITY RELAY, AND GAS DENSITY RELAY HAVIN...
- Publication number 20220390518
- Publication date Dec 8, 2022
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Min CHANG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRICAL SYSTEM WITH ON-LINE SAMPLING VERIFICATION FUNCTION AND V...
- Publication number 20220341993
- Publication date Oct 27, 2022
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Tiexin XIA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TRANSFORMATION METHOD FOR GAS DENSITY RELAY, AND GAS DENSITY RELAY...
- Publication number 20220336170
- Publication date Oct 20, 2022
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Tiexin XIA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MODIFYING GAS DENSITY RELAY, AND GAS DENSITY RELAY HAVIN...
- Publication number 20220336172
- Publication date Oct 20, 2022
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Haiyong JIN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRICAL SYSTEM WITH ON-LINE SAMPLING VERIFICATION FUNCTION AND V...
- Publication number 20220336171
- Publication date Oct 20, 2022
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Haiyong JIN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FIELD DETECTION DEVICE, SYSTEM AND METHOD FOR ACHIEVING NO MAINTENA...
- Publication number 20220334184
- Publication date Oct 20, 2022
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Min CHANG
- G05 - CONTROLLING REGULATING
Information Patent Application
MAINTENANCE-FREE GAS DENSITY RELAY AND CROSS-CHECKING METHOD THEREFOR
- Publication number 20220336169
- Publication date Oct 20, 2022
- SHANGHAI ROYE ELECTRIC CO., LTD.
- Haiyong JIN
- H01 - BASIC ELECTRIC ELEMENTS

Zhengcao GUO

Person

Patents Grantslast 30 patents

Method for modifying gas density relay, and gas density relay havin...

Transformation method for gas density relay, and gas density relay...

Method for modifying gas density relay, and gas density relay havin...

Electrical system with on-line sampling verification function and v...

Electrical system with on-line sampling verification function and v...

Patents Applicationslast 30 patents

GAS DENSITY RELAY WITH SEALING PERFORMANCE SELF-CHECKING FUNCTION,...

SELF-DIAGNOSTIC GAS DENSITY RELAY AND USE METHOD THEREOF

METHOD FOR MODIFYING GAS DENSITY RELAY, AND GAS DENSITY RELAY HAVIN...

ELECTRICAL SYSTEM WITH ON-LINE SAMPLING VERIFICATION FUNCTION AND V...

TRANSFORMATION METHOD FOR GAS DENSITY RELAY, AND GAS DENSITY RELAY...

METHOD FOR MODIFYING GAS DENSITY RELAY, AND GAS DENSITY RELAY HAVIN...

ELECTRICAL SYSTEM WITH ON-LINE SAMPLING VERIFICATION FUNCTION AND V...

FIELD DETECTION DEVICE, SYSTEM AND METHOD FOR ACHIEVING NO MAINTENA...

MAINTENANCE-FREE GAS DENSITY RELAY AND CROSS-CHECKING METHOD THEREFOR