Hongchuan ZHANG

Follow

Person

NINGBO, CN

People

Patents Applicationslast 30 patents

Information Patent Application
Pool Brush Assembly with Replaceable Handle and Brush Head Arrangement
- Publication number 20240337124
- Publication date Oct 10, 2024
- Ningbo Bonny E-Home Co., Ltd.
- Hongchuan ZHANG
- E04 - BUILDING
Information Patent Application
Swimming Pool Chemical Dispenser
- Publication number 20220412113
- Publication date Dec 29, 2022
- Ningbo Bonny E-Home Co., Ltd.
- Hongchuan ZHANG
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
SWIMMING POOL CHEMICAL DISPENSER
- Publication number 20210340786
- Publication date Nov 4, 2021
- NINGBO BONNY E-HOME CO., LTD.
- Hongchuan ZHANG
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE