Huaigang Feng

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Donnuggan City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Combined door hinge with variable hydraulic damping and stopper dev...
- Patent number 11,268,312
- Issue date Mar 8, 2022
- Huaigang Feng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Combined door hinge with variable hydraulic damping and stopper dev...
- Patent number 10,633,905
- Issue date Apr 28, 2020
- Huaigang Feng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Combined Door Hinge with Variable Hydraulic Damping and Stopper Dev...
- Publication number 20200217119
- Publication date Jul 9, 2020
- Huaigang Feng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Combined Door Hinge with Variable Hydraulic Damping and Stopper Dev...
- Publication number 20190040667
- Publication date Feb 7, 2019
- Huaigang Feng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Combined Door Hinge with Variable Hydraulic Damping and Stopper Dev...
- Publication number 20180238092
- Publication date Aug 23, 2018
- Victory Sales and Distribution, LLC.
- Huaigang Feng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES