Yaoqing ZHU

Follow

Person

Shanghai, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Electric toothbrush comprising three-sided bristles
- Patent number 12,048,602
- Issue date Jul 30, 2024
- SHANGHAI HEISR INTELLIGENT TECHNOLOGY CO. LTD.
- Mao Zhao
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
TOOTHBRUSH HEAD FOR ELECTRIC TOOTHBRUSH
- Publication number 20240341937
- Publication date Oct 17, 2024
- Shanghai Heisr Intelligent Technology Co., Ltd.
- Mao ZHAO
- A46 - BRUSHWARE
Information Patent Application
ELECTRIC TOOTHBRUSH COMPRISING THREE-SIDED BRISTLES
- Publication number 20210369432
- Publication date Dec 2, 2021
- Shanghai Heisr Intelligent Technology Co., Ltd.
- Mao ZHAO
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE