Inventor

ZHANG CHANGHAI

CN2 patents

⚠️ This page may combine multiple inventors who share the name “ZHANG CHANGHAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BOSCH GMBH ROBERT

1 patent

US11805614B2Oct 31, 2023

Contact protection cover held in a locked position by a circuit breaker

BOSCH GMBH ROBERT0 citations58

NINGBO FOTILE KITCHEN WARE CO

1 patent

US12426768B2Sep 30, 2025

Spray arm, and water pumping mechanism and cleaning machine thereof

NINGBO FOTILE KITCHEN WARE CO0 citations37