Patents/Inventors

Jingyu Tong

ShanghaiCN1 patent

2 Patents

US122407322025
Notification System and Method for an Elevator and an Elevator System
OTIS ELEVATOR COMPANY
0 cites
US115779302023
Automatic Elevator Calling System and a Method for Controlling Automatic Calling Elevator
OTIS ELEVATOR COMPANY
0 cites