Inventor · disambiguated record
Stewart A. Simpson
Also filed as: SIMPSON STEWART · SIMPSON STEWART A
4 granted patents·2 pending applications·35 citations·filing 1990–2018
71Inventor score
Files withHUTCHINGS NATHAN R2HYDROCARBON FILTRATION SYSTEMS2BEAR CREEK SERVICES LLC1ProAction Fluids LLC1
Top patents by PatentIndex Score
6 records- 0151US9562184B2Fluid composition for wellbore and pipleline cleanout and method of use thereofBEAR CREEK SERVICES LLC·Filed 2014·Granted Feb 7, 2017·0 cites·7 claims
- 0251US5178769AFilter for removing liquid hydrocarbons from water and process of removing gaseous and/or hydrocarbons from waterHYDROCARBON FILTRATION SYSTEMS·Filed 1990·Granted Jan 12, 1993·21 cites·5 claims
- 0347US8940666B2Fluid composition for wellbore and pipeline cleanout and method of use thereofHUTCHINGS NATHAN R·Filed 2012·Granted Jan 27, 2015·0 cites·9 claims
- 0441US5151194AFilter for removing liquid hydrocarbons from water and process of removing gaseous and/or hydrocarbons from waterHYDROCARBON FILTRATION SYSTEMS·Filed 1990·Granted Sep 29, 1992·14 cites·11 claims
- 0534US2020172789A1Composition and method for a self-suspending lost circulation material fluid systemProAction Fluids LLC·Filed 2018·Application pending·0 cites
- 0630US2014060175A1Dual friction loop fluid flow resistance measurement apparatusHUTCHINGS NATHAN R·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →