Facheng LI

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Dalian City, Liaoning Province, CN

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Patents Grantslast 30 patents

Information Patent Grant
Ventilator with dual flow passages
- Patent number 11,204,183
- Issue date Dec 21, 2021
- Dalian University of Technology
- Tengfei Zhang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Non-Power Driven Window Capable Of Adjusting Ventilation Rate
- Publication number 20200240188
- Publication date Jul 30, 2020
- DALIAN UNIVERSITY OF TECHNOLOGY
- Tengfei ZHANG
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Ventilator With Dual Flow Passages
- Publication number 20200116367
- Publication date Apr 16, 2020
- DALIAN UNIVERSITY OF TECHNOLOGY
- Tengfei ZHANG
- F24 - HEATING RANGES VENTILATING