Songyang Zhang

Follow

Person

Zhengzhou, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Soundproof door system
- Patent number 12,012,802
- Issue date Jun 18, 2024
- State Grid Henan Electric Power Research Institute
- Donghui Wang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
SOUND BARRIER SYSTEM FOR REDUCING ELECTRIC FIELD DISTORTION
- Publication number 20240221712
- Publication date Jul 4, 2024
- State Grid Henan Electric Power Research Institute
- Donghui Wang
- G01 - MEASURING TESTING
Information Patent Application
SOUNDPROOF DOOR SYSTEM
- Publication number 20230112167
- Publication date Apr 13, 2023
- State Grid Henan Electric Power Research Institute
- Donghui Wang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
CONTRIBUTION IDENTIFICATION METHOD FOR NOISE AT BOUNDARY OF URBAN S...
- Publication number 20220405655
- Publication date Dec 22, 2022
- State Grid Henan Electric Power Research Institute
- Donghui Wang
- G06 - COMPUTING CALCULATING COUNTING