Inventor · disambiguated record
Sandra Hopko
Also filed as: HOPKO SANDRA N · HOPKO SANDRA NOWLAND
1 granted patent·2 pending applications·67 citations·filing 2002–2015
52Inventor score
Technology areasE21B
Top patents by PatentIndex Score
3 records- 0182US6802379B2Liquid lift method for drilling risersEXXONMOBIL UPSTREAM RES CO·Filed 2002·Granted Oct 12, 2004·67 cites·20 claims
- 0233US2005006144A1Liquid lift method for drilling risersEXXONMOBIL UPSTREAM RES CO·Filed 2004·Application pending·0 cites
- 0323US2017081949A1System And Method For Recovering Hydrocarbons From A Subsurface Formation That Minimizes Surface DisturbanceHOPKO SANDRA N·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →