Inventor · disambiguated record
Jianlong Cheng
Also filed as: CHENG JIANLONG
7 granted patents·1 pending application·46 citations·filing 2010–2016
81Inventor score
Top patents by PatentIndex Score
8 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
- 0564US9297243B2Composite perforation method and device with propping agentTONG OIL TOOLS CO LTD·Filed 2013·Granted Mar 29, 2016·3 cites·12 claims
- 0637US2014053715A1Composite perforation device with scallops on the inner wallTONG PETROTECH INC·Filed 2012·Application pending·0 cites
- 0729US10746605B2Visual efficacy measuring method for objects in different light environmentsBEIJING UNIV OF TECHNOLOGY (CN)·Filed 2016·Granted Aug 18, 2020·0 cites·10 claims
- 0829US8607856B2Cable head for petroleum loggingZHANG GUOAN·Filed 2010·Granted Dec 17, 2013·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →