Inventor · disambiguated record
Charles R. Landis
Also filed as: LANDIS CHARLES · LANDIS CHARLES R · LANDIS CHARLES RANDOLPH
35 granted patents·20 pending applications·329 citations·filing 1996–2025
97Inventor score
Files withHALLIBURTON ENERGY SERV INC13HALLIBURTON ENERGY SERVICES INC13AMCOL INTERNATIONAL CORP6INTEGRITY BIO CHEMICALS LLC6HPPE LLC5
Top patents by PatentIndex Score
55 records- 0194US9920604B2Wellbore fluids comprising mineral particles and methods relating theretoHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Mar 20, 2018·7 cites·17 claims
- 0290US11028314B2Compositions comprising aminated dextrin compounds and subterranean treatment methods using the sameINTEGRITY BIO CHEMICALS LLC·Filed 2019·Granted Jun 8, 2021·8 cites·23 claims
- 0389US5837763ACompositions and methods for manufacturing waxes filled with intercalates and exfoliates formed with oligomers and polymersAMCOL INTERNATIONAL CORP·Filed 1996·Granted Nov 17, 1998·79 cites·50 claims
- 0488US11130905B2Aminated dextrin compounds and subterranean treatment methods using the sameINTEGRITY BIO CHEMICALS LLC·Filed 2019·Granted Sep 28, 2021·6 cites·22 claims
- 0587US9896380B2Water-based grouting composition with an insulating materialHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Feb 20, 2018·3 cites·15 claims
- 0685US11725134B2Decreasing proppant embedment with amine-functionalized polysaccharidesINTEGRITY BIO CHEMICALS LLC·Filed 2021·Granted Aug 15, 2023·1 cites·23 claims
- 0783US11827846B2Decreasing proppant embedment with amine-functionalized polysaccharidesINTEGRITY BIO CHEMICALS LLC·Filed 2020·Granted Nov 28, 2023·1 cites·21 claims
- 0883US9410065B2Precipitated particles and wellbore fluids and methods relating theretoHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Aug 9, 2016·4 cites·14 claims
- 0980US10377938B2Nanoparticle smart tags in subterranean applicationsSARKAR DIPTABHAS·Filed 2011·Granted Aug 13, 2019·7 cites·18 claims
- 1080US5695554AFoundry sand additives and method of casting metal, comprising a humic acid-containing ore and in-situ activated carbon or graphite for reduced VOC emissionsAMCOL INTERNATIONAL CORP·Filed 1996·Granted Dec 9, 1997·33 cites·14 claims
- 1179US8357303B2Method for removing metal contaminants from a metal containing solutionHALLIBURTON ENERGY SERV INC·Filed 2007·Granted Jan 22, 2013·3 cites·25 claims
- 1279US5810918AMethod of analyzing and/or treating foundry sands for reduced VOCsAMCOL INTERNATIONAL CORP·Filed 1997·Granted Sep 22, 1998·37 cites·20 claims
- 1378US7063804B2Compositions for treating phosphate in waterHALLIBURTON ENERGY SERV INC·Filed 2004·Granted Jun 20, 2006·18 cites·44 claims
- 1478US5688313AActivated carbon foundry sand additives and method of casting metal for reduced VOC emissionsAMCOL INTERNATIONAL CORP·Filed 1996·Granted Nov 18, 1997·29 cites·23 claims
- 1576US5769933AActivated carbon foundry sand additives and method of casting metal for reduced VOC emissionsAMCOL INTERNATIONAL CORP·Filed 1997·Granted Jun 23, 1998·35 cites·25 claims
- 1675US9777207B2Wellbore fluids comprising mineral particles and methods relating theretoJAMISON DALE E·Filed 2013·Granted Oct 3, 2017·2 cites·9 claims
- 1775US9322231B2Wellbore fluids comprising mineral particles and methods relating theretoHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Apr 26, 2016·4 cites·20 claims
- 1874US6881346B2Methods of treating phosphate in a body of waterHALLIBURTON ENERGY SERV INC·Filed 2002·Granted Apr 19, 2005·14 cites·44 claims
- 1973US9404166B2Composition and method for removing metal contaminantsANGELES-BOZA ALFREDO M·Filed 2012·Granted Aug 2, 2016·2 cites·14 claims
- 2069US10189725B2Methods of separating impurities from industrial minerals using electrocoagulationHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Jan 29, 2019·2 cites·19 claims
- 2169US9758432B2Methods of using improved bentonite barrier compositions and related geosynthetic clay linersLANDIS CHARLES R·Filed 2012·Granted Sep 12, 2017·4 cites·11 claims
- 2266US9062240B2Water-based grouting composition with an insulating materialFRANTZ ERIC B·Filed 2010·Granted Jun 23, 2015·1 cites·19 claims
- 2362US11634604B2Polysaccharide compositions and particulate materials coated therewithINTEGRITY BIO CHEMICALS LLC·Filed 2018·Granted Apr 25, 2023·0 cites·11 claims
- 2461US5893946ACombustible carbonaceous compositions and methodsAMCOL INTERNATIONAL CORP·Filed 1997·Granted Apr 13, 1999·20 cites·24 claims
- 2560US6960303B2Alum pelletsHALLIBURTON ENERGY SERV INC·Filed 2004·Granted Nov 1, 2005·6 cites·35 claims
- 2658US2025263989A1Centrifuge-free fluid cleaning systems and methods for separation of fine solids in oilfield applicationsINTEGRITY BIO CHEMICALS LLC·Filed 2025·Application pending·0 cites
- 2757US7001534B2Alum pelletsHALLIBURTON ENERGY SERV INC·Filed 2004·Granted Feb 21, 2006·3 cites·29 claims
- 2856US10934190B2Water treatment processes utilizing sequential addition of a base and an oxidantHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Mar 2, 2021·0 cites·20 claims
- 2954US10793473B2Crosslinked polysaccharide compositions and concrete blends containing the sameHPPE LLC·Filed 2017·Granted Oct 6, 2020·0 cites·21 claims
- 3054US9657522B2Methods of beneficiating drilling fluids comprising low- and high-quality claysHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted May 23, 2017·0 cites·15 claims
- 3154US9222012B2Methods for strengthening smectite shale in highwall minesHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Dec 29, 2015·0 cites·8 claims
- 3252US10407988B2Wellbore fluids comprising mineral particles and methods relating theretoHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Sep 10, 2019·0 cites·6 claims
- 3352US8657948B2Modified bentonites for advanced foundry applicationsLANDIS CHARLES·Filed 2011·Granted Feb 25, 2014·0 cites·16 claims
- 3449US9109338B2Controlled dewatering of confined, saturated formations in excavation minesHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Aug 18, 2015·0 cites·9 claims
- 3549US2014209307A1Wellbore Fluids Comprising Mineral Particles and Methods Relating TheretoHALLIBURTON ENERGY SERV INC·Filed 2013·Application pending·0 cites
- 3648US2010269998A1Modified Bentonites for Advanced Foundry ApplicationsLANDIS CHARLES·Filed 2009·Application pending·0 cites
- 3747US2014209391A1Wellbore Fluids Comprising Mineral Particles and Methods Relating TheretoHALLIBURTON ENERGY SERV INC·Filed 2013·Application pending·0 cites
- 3847US2014209392A1Wellbore Fluids Comprising Mineral Particles and Methods Relating TheretoHALLIBURTON ENERGY SERV INC·Filed 2013·Application pending·0 cites
- 3947US2014209393A1Precipitated Particles and Wellbore Fluids and Methods Relating TheretoHALLIBURTON ENERGY SERV INC·Filed 2013·Application pending·0 cites
- 4046US9102861B2Cement compositions for cementing in confined locales and methods for use thereofHALLIBURTON ENERGY SERVICES INC·Filed 2012·Granted Aug 11, 2015·0 cites·21 claims
- 4146US2014209387A1Wellbore Fluids Comprising Mineral Particles and Methods Relating TheretoHALLIBURTON ENERGY SERV INC·Filed 2013·Application pending·0 cites
- 4245US2016052805A1Electro-coagulation and metal sand treatment for wastewaterHALLIBURTON ENERGY SERVICES INC·Filed 2014·Application pending·0 cites
- 4344US2014291029A1Beneficiated Clay Viscosifying AdditivesHALLIBURTON ENERGY SERV INC·Filed 2013·Application pending·0 cites
- 4443US2014209390A1Wellbore Fluids Comprising Mineral Particles and Methods Relating TheretoHALLIBURTON ENERGY SERV INC·Filed 2013·Application pending·0 cites
- 4540US2003213752A1Alum pelletsHALLIBURTON ENERGY SERV INC·Filed 2002·Application pending·0 cites
- 4638US2019264085A1Biopolymers for fugitive dust controlHPPE LLC·Filed 2017·Application pending·0 cites
- 4738US2019153561A1Enhanced binders for iron ore pelleting and cement adhesive materialsHPPE LLC·Filed 2017·Application pending·0 cites
- 4837US9790416B2Drilling fluid compositions and methods for use thereof in subterranean formationsHALLIBURTON ENERGY SERVICES INC·Filed 2012·Granted Oct 17, 2017·0 cites·4 claims
- 4937US2017166462A1Compositions and Methods for the Removal of Sulfates and Metals From Waste WaterHPPE LLC·Filed 2016·Application pending·0 cites
- 5036US2020308468A1Cross-linked levan blends as lost cirulation materialsHPPE LLC·Filed 2017·Application pending·0 cites
Showing the top 50 of 55 patent records by PatentIndex Score.
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