Inventor · disambiguated record
Zuocheng Qian
Also filed as: QIAN ZUOCHENG
9 granted patents·19 citations·filing 2011–2014
82Inventor score
Files withSHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD5JIAN YUANLI2QIAN ZUOCHENG1YUAN FANG1
Top patents by PatentIndex Score
9 records- 0178US9279505B2Valve core assembly and valve adopting the valve core assemblyYUAN FANG·Filed 2012·Granted Mar 8, 2016·5 cites·11 claims
- 0270US10001218B2Hinged valveSHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD·Filed 2014·Granted Jun 19, 2018·3 cites·9 claims
- 0364US10823309B2Retractable handle assembly, valve using the same and intermediate bulk containerSHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD·Filed 2014·Granted Nov 3, 2020·1 cites·4 claims
- 0464US10047875B2Intermediate bulk container and valve opening/closing device thereforSHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD·Filed 2013·Granted Aug 14, 2018·1 cites·13 claims
- 0564US9534693B2Valve with a hinged valve coreSHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD·Filed 2013·Granted Jan 3, 2017·2 cites·13 claims
- 0660US9004448B2Valve and valve cartridge assembly thereofQIAN ZUOCHENG·Filed 2011·Granted Apr 14, 2015·4 cites·10 claims
- 0759US9327870B2Hinge system and collapsible containerJIAN YUANLI·Filed 2012·Granted May 3, 2016·2 cites·10 claims
- 0859US9321587B2Locking system applicable in large containerJIAN YUANLI·Filed 2012·Granted Apr 26, 2016·1 cites·7 claims
- 0947US10107414B2Intermediate bulk container and valve opening/closing device thereforSHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD·Filed 2013·Granted Oct 23, 2018·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →