JD

Jinhua Duan

ZC Zhongshan Dashan Photographic Equipment Co.: 5 patents #2 of 6Top 35%
BL Bcd Semiconductor Manufacturing Limited: 1 patents #36 of 73Top 50%
Overall (All Time): #676,475 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
D1062218 Satchel Xihua Zhu 2025-02-18
D1030304 Backpack Xihua Zhu 2024-06-11
D1029501 Trolley case Xihua Zhu 2024-06-04
11982432 Light emitting module for spotlight and spotlight Xihua Zhu 2024-05-14
11821614 Photographic lamp and lighting assembly Xihua Zhu 2023-11-21
11822213 Softbox and substrate thereof Xihua Zhu 2023-11-21
9520868 Power transistor driving circuits and methods for switching mode power supplies Qiang Zong, Yajiang Zhu 2016-12-13