Inventor · disambiguated record

Shiyi Yuan

Also filed as: YUAN SHIYI

2 granted patents·1 citations·filing 2006–2011

31Inventor score

Technology areasC08F C09K

Files withLIU CHUNDE1 PETROCHINA CO LTD1

Top patents by PatentIndex Score

2 records

0156US7304116B2Braided comb-shaped salt-resistant polymer thickening agentPETROCHINA CO LTD·Filed 2006·Granted Dec 4, 2007·1 cites·9 claims
0232US9540559B2Betaine surfactants and preparation methods and uses thereofLIU CHUNDE·Filed 2011·Granted Jan 10, 2017·0 cites·11 claims

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →