Inventor
FANG ZHENGWEI
CN16 patents
⚠️ This page may combine multiple inventors who share the name “FANG ZHENGWEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD
15 patentsUS11435009B2Sep 6, 2022
Hinged valve
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD2 citations71
US11421788B2Aug 23, 2022
Valve
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD2 citations71
US10823292B2Nov 3, 2020
Valve
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD3 citations71
US10641399B2May 5, 2020
Valve
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD2 citations71
US10407239B2Sep 10, 2019
Fixing clamp for discharge outlet of intermediate bulk container
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD3 citations71
US10046892B2Aug 14, 2018
Tamper-evident device and valve using same
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD2 citations71
US10001218B2Jun 19, 2018
Hinged valve
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD3 citations71
US9534693B2Jan 3, 2017
Valve with a hinged valve core
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD2 citations71
US11235922B2Feb 1, 2022
Fluid discharge system and squeezer thereof
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD0 citations61
US10823309B2Nov 3, 2020
Retractable handle assembly, valve using the same and intermediate bulk container
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD1 citations60
US11655076B2May 23, 2023
Liquid transport system and a liner bag and a method of using the same
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD0 citations50
US11383889B2Jul 12, 2022
Squeezer and liquid discharge system and method
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD0 citations50
US11305933B2Apr 19, 2022
Fluid discharge system and squeezer thereof
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD0 citations50
US10047875B2Aug 14, 2018
Intermediate bulk container and valve opening/closing device therefor
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD1 citations50
US10107414B2Oct 23, 2018
Intermediate bulk container and valve opening/closing device therefor
SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD0 citations39