Zhaoshan Cheng

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Water filtration system with recirculation to reduce total dissolve...
- Patent number 11,072,551
- Issue date Jul 27, 2021
- A. O. Smith Corporation
- Hai-Feng Zhang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Water purifier and water preparation method thereof
- Patent number 10,835,871
- Issue date Nov 17, 2020
- A. O. Smith Corporation
- Shi Shuai
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
WATER PURIFIER AND WATER PREPARATION METHOD THEREOF
- Publication number 20190168164
- Publication date Jun 6, 2019
- A.O. SMITH (CHINA) WATER HEATER CO., LTD.
- Shi SHUAI
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
WATER FILTRATION SYSTEM WITH RECIRCULATION TO REDUCE TOTAL DISSOLVE...
- Publication number 20180162761
- Publication date Jun 14, 2018
- A.O. Smith Corporation
- Hai-Feng Zhang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE