Inventor · disambiguated record
Yonghua Shang
Also filed as: SHANG YONGHUA
10 granted patents·6 pending applications·1 citations·filing 2007–2025
76Inventor score
Top patents by PatentIndex Score
16 records- 0171US9701624B2Method for preparing biuret polyisocyanateWANHUA CHEMICAL GROUP CO LTD·Filed 2014·Granted Jul 11, 2017·1 cites·20 claims
- 0269US2025353959A1Preparation method for low-color number, low-odor polyisocyanate curing agentWANHUA CHEMICAL GROUP CO LTD·Filed 2023·Application pending·0 cites
- 0365US2024166795A1Xylylene diisocynate composition, preparation method therefor and use thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2022·Application pending·0 cites
- 0461US12304993B2Storage-stable polyisocyanate composition and preparation methodWANHUA CHEMICAL GROUP CO LTD·Filed 2020·Granted May 20, 2025·0 cites·19 claims
- 0556US12264121B21,3-bisisocyanatomethylcyclohexane composition and optical resin prepared therefromWANHUA CHEMICAL GROUP CO LTD·Filed 2020·Granted Apr 1, 2025·0 cites·11 claims
- 0654US11939280B2Method for preparing isophorone diisocyanateWANHUA CHEMICAL GROUP CO LTD·Filed 2018·Granted Mar 26, 2024·0 cites·20 claims
- 0754US2025197555A1Isocyanate composition, modified isocyanate, polyurethane resin and optical materialWANHUA CHEMICAL GROUP CO LTD·Filed 2025·Application pending·0 cites
- 0854US2023272151A1Storage-stable polyisocyanate composition and preparation method thereforWANHUA CHEMICAL GROUP CO LTD·Filed 2020·Application pending·0 cites
- 0953US11059772B2Imine-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
- 1052US2022298293A1Aliphatic polyisocyanate composition, preparation method therefor, and coating compositionWANHUA CHEMICAL GROUP CO LTD·Filed 2020·Application pending·0 cites
- 1151US2023374194A1Polyisocyanate composition, preparation method therefor and application thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2020·Application pending·0 cites
- 1250US12024582B2Preparation method for polyurethane optical resin and applications thereofWANHUA CHEMICAL GROUP CO LTD·Filed 2020·Granted Jul 2, 2024·0 cites·5 claims
- 1349US11814339B2Method for preparing isocyanate in gaseous phaseWANHUA CHEMICAL GROUP CO LTD·Filed 2018·Granted Nov 14, 2023·0 cites·18 claims
- 1445US10645756B2Heater, use thereof and method for preparing isocyanate using heaterWANHUA CHEMICAL GROUP CO LTD·Filed 2014·Granted May 5, 2020·0 cites·7 claims
- 1544US11111332B2Isocyanate 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
- 1639US8206652B2Jet reactor with flow ducts and process for preparing isocyanates using itSHANG YONGHUA·Filed 2007·Granted Jun 26, 2012·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →