Inventor
MI CHANG
CN10 patents
⚠️ This page may combine multiple inventors who share the name “MI CHANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BEIJING ROCKROBO TECH CO LTD
5 patentsUSD867987SNov 26, 2019
Base station
BEIJING ROCKROBO TECH CO LTD36 citations93
USD867701SNov 19, 2019
Cleaning robot
BEIJING ROCKROBO TECH CO LTD37 citations93
USD919210SMay 11, 2021
Cleaning robot
BEIJING ROCKROBO TECH CO LTD16 citations85
USD868407SNov 26, 2019
Cleaning pad
BEIJING ROCKROBO TECH CO LTD15 citations84
USD868408SNov 26, 2019
Tank
BEIJING ROCKROBO TECH CO LTD7 citations83
BEIJING ROBOROCK TECHNOLOGY CO LTD
4 patentsUSD944479SFeb 22, 2022
Brush
BEIJING ROBOROCK TECHNOLOGY CO LTD5 citations71
US12048412B2Jul 30, 2024
Intelligent cleaning device
BEIJING ROBOROCK TECHNOLOGY CO LTD0 citations62
US12383111B2Aug 12, 2025
Side brush and intelligent cleaning device
BEIJING ROBOROCK TECHNOLOGY CO LTD0 citations50
US12090785B2Sep 17, 2024
Universal wheel assembly and smart cleaning device having same
BEIJING ROBOROCK TECHNOLOGY CO LTD0 citations50