Jeff Chen

#1 | 2024-12-26

US20240426149A1

Fixed constructions

Door Lock

#2 | 2024-12-26

US20240426133A1

Fixed constructions

Door Lock

#3 | 2023-06-22

US20230193654A1

Fixed constructions

Door Lock

#4 | 2023-05-18

US20230151672A1

Fixed constructions

Automatic Opening and Closing Device of Door

#5 | 2022-08-11

US20220254213A1

Physics

Control Device of Electronic Lock

#6 | 2022-05-26

US20220162885A1

Fixed constructions

Length adjustable door lock

#7 | 2022-05-26

US20220162883A1

Fixed constructions

Lock for door

#8 | 2022-03-03

US20220064989A1

Fixed constructions

Lock

#9 | 2021-11-25

US20210363783A1

Fixed constructions

Lock