Inventor
ZHENG HONGJUAN
CN12 patents
⚠️ This page may combine multiple inventors who share the name “ZHENG HONGJUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHANGZHOU SUNWOOD INT TRADING CO LTD
7 patentsUSD907563SJan 12, 2021
Carriage covering lock
CHANGZHOU SUNWOOD INT TRADING CO LTD13 citations83
US11148512B2Oct 19, 2021
Truck bed cover locking device, truck bed and truck
CHANGZHOU SUNWOOD INT TRADING CO LTD6 citations71
US12528341B2Jan 20, 2026
Multi-layer hardtop structure, cover assembly, end support mechanism, and positioning mechanism for truck bed
CHANGZHOU SUNWOOD INT TRADING CO LTD0 citations60
US11623503B2Apr 11, 2023
Locking structure for a truck bed cover and a truck
CHANGZHOU SUNWOOD INT TRADING CO LTD0 citations60
US11180011B2Nov 23, 2021
Truck bed cover locking device, truck bed and truck
CHANGZHOU SUNWOOD INT TRADING CO LTD1 citations60
US11919377B2Mar 5, 2024
Overturning and tensioning mechanism for convertible soft top of vehicle
CHANGZHOU SUNWOOD INT TRADING CO LTD0 citations50
US11820213B2Nov 21, 2023
Foldable support structure for soft high top of pickup truck
CHANGZHOU SUNWOOD INT TRADING CO LTD0 citations50
SHI HANG
5 patentsUS9421850B2Aug 23, 2016
Folding tonneau cover system secondary hinge assembly
SHI HANG24 citations92
US9610831B2Apr 4, 2017
Tonneau cover internal frame mounting system
SHI HANG6 citations71
US11427059B2Aug 30, 2022
Soft tonneau cover with supporting cross bar
SHI HANG0 citations60
USD918120SMay 4, 2021
Watertight side-rail for tonneau cover
SHI HANG1 citations60
USD915267SApr 6, 2021
Tonneau cover side-rail locking device
SHI HANG1 citations60