Inventor
YU GUOLIN
CN62 patents
⚠️ This page may combine multiple inventors who share the name “YU GUOLIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NINGBO WELL ELECTRIC APPLIANCE CO LTD
37 patentsUSD1060264SFeb 4, 2025
Universal surge protector
NINGBO WELL ELECTRIC APPLIANCE CO LTD10 citations86
USD1060263SFeb 4, 2025
Universal surge protector
NINGBO WELL ELECTRIC APPLIANCE CO LTD10 citations86
USD979830SFeb 28, 2023
Lamp holder
NINGBO WELL ELECTRIC APPLIANCE CO LTD6 citations86
USD978445SFeb 14, 2023
Lamp holder
NINGBO WELL ELECTRIC APPLIANCE CO LTD7 citations86
USD908094SJan 19, 2021
Multi-socket hub
NINGBO WELL ELECTRIC APPLIANCE CO LTD11 citations86
USD926698SAug 3, 2021
Electrical plug
NINGBO WELL ELECTRIC APPLIANCE CO LTD6 citations84
USD926601SAug 3, 2021
Timer
NINGBO WELL ELECTRIC APPLIANCE CO LTD6 citations84
USD753064SApr 5, 2016
Plug and socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD8 citations84
USD1074608SMay 13, 2025
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD6 citations83
USD1074604SMay 13, 2025
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD7 citations83
USD1032535SJun 25, 2024
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD4 citations75
USD990013SJun 20, 2023
Work lamp
NINGBO WELL ELECTRIC APPLIANCE CO LTD5 citations75
USD978415SFeb 14, 2023
Lamp holder
NINGBO WELL ELECTRIC APPLIANCE CO LTD2 citations73
USD978399SFeb 14, 2023
Work lamp
NINGBO WELL ELECTRIC APPLIANCE CO LTD3 citations73
USD964289SSep 20, 2022
Plug retention apparatus
NINGBO WELL ELECTRIC APPLIANCE CO LTD2 citations73
USD957343SJul 12, 2022
Multi-socket hub
NINGBO WELL ELECTRIC APPLIANCE CO LTD5 citations73
USD938916SDec 21, 2021
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD3 citations73
USD930874SSep 14, 2021
Work lamp
NINGBO WELL ELECTRIC APPLIANCE CO LTD2 citations73
USD922216SJun 15, 2021
Timer
NINGBO WELL ELECTRIC APPLIANCE CO LTD3 citations73
USD922217SJun 15, 2021
Timer
NINGBO WELL ELECTRIC APPLIANCE CO LTD3 citations73
USD920920SJun 1, 2021
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD5 citations73
US10897113B1Jan 19, 2021
Lamp cap and lamp holder thereof
NINGBO WELL ELECTRIC APPLIANCE CO LTD2 citations73
USD905322SDec 15, 2020
Lamp
NINGBO WELL ELECTRIC APPLIANCE CO LTD4 citations73
USD896760SSep 22, 2020
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD4 citations73
US10714870B1Jul 14, 2020
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD3 citations73
US10714862B1Jul 14, 2020
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD5 citations73
USD1074606SMay 13, 2025
Electrical plug
NINGBO WELL ELECTRIC APPLIANCE CO LTD1 citations64
USD1112087SFeb 10, 2026
Electrical socket assembly
NINGBO WELL ELECTRIC APPLIANCE CO LTD0 citations62
USD1111787SFeb 10, 2026
Cable reel
NINGBO WELL ELECTRIC APPLIANCE CO LTD0 citations62
USD1099041SOct 21, 2025
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD0 citations62
USD1098035SOct 14, 2025
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD0 citations62
USD1098032SOct 14, 2025
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD0 citations62
US12394952B2Aug 19, 2025
Screw lamp cap and screw lamp socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD0 citations62
USD1071868SApr 22, 2025
Electrical socket
NINGBO WELL ELECTRIC APPLIANCE CO LTD1 citations62
USD1071704SApr 22, 2025
Extension cord reel
NINGBO WELL ELECTRIC APPLIANCE CO LTD0 citations62
USD972185SDec 6, 2022
Lawn lamp
NINGBO WELL ELECTRIC APPLIANCE CO LTD0 citations62
US11316301B2Apr 26, 2022
Electrical connection assembly
NINGBO WELL ELECTRIC APPLIANCE CO LTD1 citations62
NINGBO WELL ELECTRIC APPLANCE CO LTD
13 patentsUSD872696SJan 14, 2020
Extension cord
NINGBO WELL ELECTRIC APPLANCE CO LTD34 citations94
USD821978SJul 3, 2018
Electrical socket
NINGBO WELL ELECTRIC APPLANCE CO LTD20 citations94
USD890100SJul 14, 2020
Lamp holder
NINGBO WELL ELECTRIC APPLANCE CO LTD6 citations84
US10408392B2Sep 10, 2019
Outdoor lamp holder and outdoor lamp string using same
NINGBO WELL ELECTRIC APPLANCE CO LTD7 citations84
USD844566SApr 2, 2019
Electrical socket with USB charging
NINGBO WELL ELECTRIC APPLANCE CO LTD13 citations84
USD817887SMay 15, 2018
Electrical socket
NINGBO WELL ELECTRIC APPLANCE CO LTD16 citations84
USD817886SMay 15, 2018
Electrical plug
NINGBO WELL ELECTRIC APPLANCE CO LTD6 citations84
USD817888SMay 15, 2018
Electrical socket with cover
NINGBO WELL ELECTRIC APPLANCE CO LTD13 citations84
US10006596B2Jun 26, 2018
Color changing light and related light chain thereof
NINGBO WELL ELECTRIC APPLANCE CO LTD15 citations74
USD884256SMay 12, 2020
Lampshade
NINGBO WELL ELECTRIC APPLANCE CO LTD4 citations73
USD869739SDec 10, 2019
Lampshade
NINGBO WELL ELECTRIC APPLANCE CO LTD3 citations73
USD844565SApr 2, 2019
Electrical socket
NINGBO WELL ELECTRIC APPLANCE CO LTD4 citations73
US9949340B2Apr 17, 2018
Color changing light and controlling method and apparatus thereof
NINGBO WELL ELECTRIC APPLANCE CO LTD2 citations73
Showing the top 50 of 62 patents by PatentIndex Score.