Chengzhi YAN

Follow

Person

Changping District, Beijing, CN

People

Patents Applicationslast 30 patents

Information Patent Application
CLEANING APPARATUS AND DIRT DETECTION METHOD
- Publication number 20240252012
- Publication date Aug 1, 2024
- Beijing Roborock Technology Co., Ltd.
- Chengzhi YAN
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
CLEANING DEVICE, CONTROL METHOD THEREFOR, AND COMPUTER READABLE STO...
- Publication number 20240172910
- Publication date May 30, 2024
- Beijing Roborock Technology Co., Ltd.
- Chengzhi YAN
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...