Inventor · disambiguated record
Yu-Shan Chao
Also filed as: CHAO YU-SHAN
9 granted patents·195 citations·filing 1995–2022
88Inventor score
Top patents by PatentIndex Score
9 records- 0188US5519108ACatalytic compositions containing tetrabutyl titanate and a mixture of cocatalysts for the preparation of poly(butylene terephthalate)IND TECH RES INST·Filed 1995·Granted May 21, 1996·74 cites·17 claims
- 0279US6313230B1Catalyst composition for hydrogenation of conjugated diene based synthetic rubbersIND TECH RES INST·Filed 1999·Granted Nov 6, 2001·50 cites·15 claims
- 0377US11565244B2Catalyst precursorIND TECH RES INST·Filed 2022·Granted Jan 31, 2023·0 cites·2 claims
- 0475US8273903B2Method for preparing the citraconic anhydride and method for isomerizing/dehydrating itaconic acidHSU HSI-YEN·Filed 2010·Granted Sep 25, 2012·3 cites·19 claims
- 0572US11400440B2Catalyst and precursor thereof and method of forming dialkyl carbonateIND TECH RES INST·Filed 2019·Granted Aug 2, 2022·0 cites·5 claims
- 0667US6207773B1Metallocene catalyst for preparing olefin polymerIND TECH RES INST·Filed 1999·Granted Mar 27, 2001·23 cites·58 claims
- 0767US5608032ACatalytic compositions for the proparation of poly(ethylene terephthalate) with attenuated yellow colorIND TECH RES INST·Filed 1995·Granted Mar 4, 1997·23 cites·18 claims
- 0866US5623047ACatalytic compositions for the preparation of poly(ethylene terephthalate) with improved colorIND TECH RES INST·Filed 1995·Granted Apr 22, 1997·22 cites·11 claims
- 0935US6780811B2Catalyst composition for living free radical polymerization and process for polymerizing (meth) acrylic, vinyl, vinylidene, and diene monomers using the catalyst compositionIND TECH RES INST·Filed 2002·Granted Aug 24, 2004·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →