Inventor · disambiguated record
Xianhong Sun
Also filed as: SUN XIANHONG
4 granted patents·43 citations·filing 2010–2014
75Inventor score
Technology areasE21B
Top patents by PatentIndex Score
4 records- 0189US9297242B2Structure for gunpowder charge in multi-frac composite perforating deviceTONG PETROTECH INC·Filed 2014·Granted Mar 29, 2016·24 cites·19 claims
- 0282US8960289B2Combined fracturing and perforating method and device for oil and gas wellZHANG GUOAN·Filed 2010·Granted Feb 24, 2015·12 cites·19 claims
- 0368US8943944B2Structure for gunpowder charge in multi-frac composite perforating devicesTONG PETROTECH INC·Filed 2012·Granted Feb 3, 2015·4 cites·9 claims
- 0465US9027667B2Structure for gunpowder charge in combined fracturing perforation deviceTONG OIL TOOLS CO LTD·Filed 2013·Granted May 12, 2015·3 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →