Inventor · disambiguated record
Weiqi Hua
Also filed as: HUA WEIQI
35 granted patents·3 pending applications·25 citations·filing 2007–2020
94Inventor score
Files withWANHUA CHEMICAL GROUP CO LTD29DING JIANSHENG2CHEN CHANGSHENG1HU SHUANG1NINGBO WANHUA POLYURETHANES CO1
Top patents by PatentIndex Score
38 records- 0184US9168515B2High-selectivity catalyst for production of high-quality gasoline fractions from syngas and its preparation methodWANG YE·Filed 2011·Granted Oct 27, 2015·8 cites·10 claims
- 0280US11291985B2Preparation method for propylene epoxidation catalyst, and application thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2018·Granted Apr 5, 2022·2 cites·22 claims
- 0379US10696574B2Method for treating reverse osmosis concentrated waterWANHUA CHEMICAL GROUP CO LTD·Filed 2016·Granted Jun 30, 2020·2 cites·20 claims
- 0476US9138717B2High-speed mixing reactor and application thereofDING JIANSHENG·Filed 2010·Granted Sep 22, 2015·4 cites·20 claims
- 0573US10898883B2Silicalite-1 molecular sieve-based catalyst and preparation method for 1,2-pentanediol using said catalystWANHUA CHEMICAL GROUP CO LTD·Filed 2017·Granted Jan 26, 2021·1 cites·21 claims
- 0672US10226758B2Method for preparing catalyst used for preparing chlorine, catalyst and method for preparing chlorineWANHUA CHEMICAL GROUP CO LTD·Filed 2014·Granted Mar 12, 2019·2 cites·12 claims
- 0771US9701624B2Method for preparing biuret polyisocyanateWANHUA CHEMICAL GROUP CO LTD·Filed 2014·Granted Jul 11, 2017·1 cites·20 claims
- 0868US9580380B2Method for preparing diamino-dicyclohexyl methaneWANHUA CHEMICAL GROUP CO LTD·Filed 2013·Granted Feb 28, 2017·1 cites·19 claims
- 0966US7893301B2Method of preparing polymethylene-polyphenyl-polyamineNINGBO WANHUA POLYURETHANES CO·Filed 2007·Granted Feb 22, 2011·2 cites·7 claims
- 1062US9845281B2Method for preparing hydroxyethyl (meth) acrylateWANHUA CHEMICAL GROUP CO LTD·Filed 2014·Granted Dec 19, 2017·1 cites·24 claims
- 1162US8759591B2Method for intermittently producing 4,4′-diaminodicyclohexylmethane with a low amount of the trans-trans isomerHU SHUANG·Filed 2011·Granted Jun 24, 2014·1 cites·12 claims
- 1262US2019337802A1Process of Producing Chlorine GasWANHUA CHEMICAL GROUP CO LTD·Filed 2019·Application pending·0 cites
- 1357US10576465B2Catalyst for preparing chlorine by oxidation of hydrogen chloride and preparation thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2017·Granted Mar 3, 2020·0 cites·12 claims
- 1454US11045794B2Supported catalyst used for synthesizing polyether amine, and manufacturing methodWANHUA CHEMICAL GROUP CO LTD·Filed 2016·Granted Jun 29, 2021·0 cites·20 claims
- 1554US9399582B2Catalyst for preparing phosgene and method for preparing phosgene using the sameWANHUA CHEMICAL GROUP CO LTD·Filed 2014·Granted Jul 26, 2016·0 cites·9 claims
- 1653US11059772B2Imine-type quaternary ammonium salt catalyst, preparation method thereof and use thereof for preparation of polyisocyanate compositionWANHUA CHEMICAL GROUP CO LTD·Filed 2018·Granted Jul 13, 2021·0 cites·12 claims
- 1753US11000837B2Catalyst for preparing chlorine gas by hydrogen chloride oxidation, and preparation method and application thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2016·Granted May 11, 2021·0 cites·20 claims
- 1851US2015037243A1Process of Producing Chlorine Gas by Catalytic Oxidation of Hydrogen ChlorideDING JIANSHENG·Filed 2012·Application pending·0 cites
- 1950US12024582B2Preparation method for polyurethane optical resin and applications thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2020·Granted Jul 2, 2024·0 cites·5 claims
- 2049US11814339B2Method for preparing isocyanate in gaseous phaseWANHUA CHEMICAL GROUP CO LTD·Filed 2018·Granted Nov 14, 2023·0 cites·18 claims
- 2148US10787593B2Emulsifiable isocyanate composition and preparation method and use thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2015·Granted Sep 29, 2020·0 cites·17 claims
- 2248US9802848B2Method for treating waste saline water produced in production process of diphenylmethane diisocyanate (MDI)ZHANG HONGKE·Filed 2009·Granted Oct 31, 2017·0 cites·16 claims
- 2347US12122876B2Method for preparing reactive sealant resinWANHUA CHEMICAL GROUP CO LTD·Filed 2018·Granted Oct 22, 2024·0 cites·22 claims
- 2447US11511260B2Olefin epoxidation catalyst, preparation method therefor, and application thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2018·Granted Nov 29, 2022·0 cites·18 claims
- 2547US10974233B2Catalyst for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol, method and application thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2017·Granted Apr 13, 2021·0 cites·15 claims
- 2647US9840462B2Solvent refining method for isocyanate prepared by phosgene method and devices used in sameWANHUA CHEMICAL GROUP CO LTD·Filed 2014·Granted Dec 12, 2017·0 cites·22 claims
- 2746US2013288884A1Catalyst for preparing chlorine by oxidation of hydrogen chloride and preparation thereofYI GUANGQUAN·Filed 2011·Application pending·0 cites
- 2845US10645756B2Heater, use thereof and method for preparing isocyanate using heaterWANHUA CHEMICAL GROUP CO LTD·Filed 2014·Granted May 5, 2020·0 cites·7 claims
- 2944US11111332B2Isocyanate polymerization catalyst, preparation method thereof, and method for preparing polyisocyanate by using sameWANHUA CHEMICAL GROUP CO LTD·Filed 2016·Granted Sep 7, 2021·0 cites·20 claims
- 3044US9683078B2Method for preparing branched polycarbonate with continuous two-phase interface phosgene methodWANHUA CHEMICAL GROUP CO LTD·Filed 2013·Granted Jun 20, 2017·0 cites·20 claims
- 3144US9624162B2Method for preparing 3-aminomethyl-3,5,5-trimethyl cyclohexylamineWANHUA CHEMICAL GROUP CO LTD·Filed 2012·Granted Apr 18, 2017·0 cites·25 claims
- 3243US11213811B2Preparation method for olefin epoxidation catalyst and applications thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2018·Granted Jan 4, 2022·0 cites·20 claims
- 3343US10369559B2Composite catalyst, preparation process thereof, and process for catalyzing the trimerization of butadiene using the composite catalystWANHUA CHEMICAL GROUP CO LTD·Filed 2013·Granted Aug 6, 2019·0 cites·9 claims
- 3443US9062154B2Polycarbonate preparation methodWANHUA CHEMICAL GROUP CO LTD·Filed 2012·Granted Jun 23, 2015·0 cites·14 claims
- 3541US11167280B2Catalyst for preparing α-phenylethanol by hydrogenation of acetophenone, preparation method thereof and application thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2018·Granted Nov 9, 2021·0 cites·20 claims
- 3639US8829245B23-aminomethyl-3, 5, 5-trimethyl cyclohexylamine preparation methodCHEN CHANGSHENG·Filed 2011·Granted Sep 9, 2014·0 cites·28 claims
- 3739US8206652B2Jet reactor with flow ducts and process for preparing isocyanates using itSHANG YONGHUA·Filed 2007·Granted Jun 26, 2012·0 cites·16 claims
- 3836US11059033B2Catalyst for catalytic oxidation treatment of organic wastewater, preparation method thereof, and application thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2016·Granted Jul 13, 2021·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →