Inventor · disambiguated record
Carl Keith Smith
Also filed as: SMITH CARL · SMITH CARL K · SMITH CARL KEITH
19 granted patents·4 pending applications·159 citations·filing 1974–2021
93Inventor score
Files withCANADIAN ENERGY SERVICES LP9MIDCON PIPELINE EQUIPMENT CO2SMITH CARL2SMITH CARL KEITH2STOIAN STEFAN ALEXANDRU2
Top patents by PatentIndex Score
23 records- 0195US8703658B2Drilling fluid and methodsSMITH CARL KEITH·Filed 2011·Granted Apr 22, 2014·33 cites·37 claims
- 0281US4141824ATangentially fed upflow sand filter method and apparatusMIDCON PIPELINE EQUIPMENT CO·Filed 1977·Granted Feb 27, 1979·40 cites·25 claims
- 0377US4014510APilot valveMIDCON PIPELINE EQUIPMENT CO·Filed 1975·Granted Mar 29, 1977·32 cites·7 claims
- 0474US7989399B2Drilling fluid and methodsTECHSTAR ENERGY SERVICES INC·Filed 2008·Granted Aug 2, 2011·7 cites·21 claims
- 0567US10280353B2Drilling fluidCANADIAN ENERGY SERVICES LP·Filed 2018·Granted May 7, 2019·0 cites·9 claims
- 0665US11591506B2Method for making and using a drilling fluidCANADIAN ENERGY SERVICES LP·Filed 2020·Granted Feb 28, 2023·0 cites·30 claims
- 0764US8338340B2Drilling fluid and methodsSTOIAN STEFAN ALEXANDRU·Filed 2011·Granted Dec 25, 2012·1 cites·17 claims
- 0863US10876027B2Method for making and using a drilling fluidCANADIAN ENERGY SERVICES LP·Filed 2016·Granted Dec 29, 2020·0 cites·10 claims
- 0963US9969920B2Drilling fluid and method for drilling in coal-containing formationsCANADIAN ENERGY SERVICES LP·Filed 2016·Granted May 15, 2018·0 cites·12 claims
- 1062US11407002B2Hand tool for application of a viscous material with movable guideSMITH CARL·Filed 2021·Granted Aug 9, 2022·0 cites·15 claims
- 1162US4164597AMethod of mixing and spraying concrete onto pipeMIDCON PIPELINE EQUIPMENT·Filed 1977·Granted Aug 14, 1979·17 cites·19 claims
- 1260US3942772ATechnique for mixing granular materialsMID CONTINENT PIPELINE EQUIPME·Filed 1974·Granted Mar 9, 1976·13 cites·29 claims
- 1360US2014213489A1Drilling fluid and methodsCANADIAN ENERGY SERVICES LP·Filed 2014·Application pending·0 cites
- 1457US10738229B2Drilling fluid and method for drilling in coal-containing formationsCANADIAN ENERGY SERVICES LP·Filed 2013·Granted Aug 11, 2020·0 cites·8 claims
- 1557US2016024368A1Drilling fluid and methodsCANADIAN ENERGY SERVICES LP·Filed 2015·Application pending·0 cites
- 1655US9850416B2Drilling fluid and method for drilling in coal-containing formationsSMITH CARL KEITH·Filed 2011·Granted Dec 26, 2017·0 cites·35 claims
- 1755US6706667B1Shale-stabilizing additivesFiled 1999·Granted Mar 16, 2004·16 cites·10 claims
- 1852US10202532B2Drilling fluid and method for drilling a wellboreCANADIAN ENERGY SERVICES LP·Filed 2017·Granted Feb 12, 2019·0 cites·39 claims
- 1951US8387723B2Drilling fluid and method for drilling in coal-containing formationsSTOIAN STEFAN ALEXANDRU·Filed 2008·Granted Mar 5, 2013·0 cites·14 claims
- 2049US9670394B2Drilling fluid and method for drilling a wellboreTECH-STAR FLUID SYSTEMS INC·Filed 2013·Granted Jun 6, 2017·0 cites·41 claims
- 2145US2020384332A1Dribbling Practice AssemblySMITH CARL·Filed 2019·Application pending·0 cites
- 2236US2003193155A1Remanufactured suspension assemblyFiled 2002·Application pending·0 cites
- 2335US11155742B2Drill fluid and method for tunnelingCANADIAN ENERGY SERVICES LP·Filed 2018·Granted Oct 26, 2021·0 cites·51 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →