Inventor · disambiguated record
Preston Andrew May
Also filed as: MAY PRESTON · MAY PRESTON A · MAY PRESTON ANDREW
50 granted patents·8 pending applications·51 citations·filing 2014–2024
96Inventor score
Top patents by PatentIndex Score
58 records- 0199US11060400B1Methods to activate downhole toolsHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Jul 13, 2021·12 cites·20 claims
- 0298US11768138B2Methods to use chemo-resistive sensors for wellbore productionHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Sep 26, 2023·6 cites·15 claims
- 0398US11473426B2Methods to characterize wellbore fluid composition and provide optimal additive dosing using MEMS technologyHALLIBURTON ENERGY SERVICES INC·Filed 2022·Granted Oct 18, 2022·3 cites·20 claims
- 0495US10961431B1Thermally responsive lost circulation materialsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Mar 30, 2021·8 cites·3 claims
- 0590US11352538B2Low molecular mass organic gelator viscosihiersHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Jun 7, 2022·2 cites·13 claims
- 0687US12043788B2Environmentally acceptable wellbore stability additiveHALLIBURTON ENERGY SERVICES INC·Filed 2023·Granted Jul 23, 2024·1 cites·13 claims
- 0787US11326089B2Reactive polymeric lost circulation materialsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted May 10, 2022·2 cites·18 claims
- 0887US11255191B2Methods to characterize wellbore fluid composition and provide optimal additive dosing using MEMS technologyHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Feb 22, 2022·2 cites·20 claims
- 0984US11401805B2Colorimetric detection of amine-based shale inhibitorsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Aug 2, 2022·2 cites·20 claims
- 1083US10934211B2Modified sodium bentonite clays for barrier layer applicationsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Mar 2, 2021·2 cites·20 claims
- 1180US9500633B2Automated machine and method for fruit testingMOHR CHARLES L·Filed 2014·Granted Nov 22, 2016·6 cites·12 claims
- 1279US11220625B2Settable, removable, and reusable lost circulation fluidsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Jan 11, 2022·2 cites·18 claims
- 1378US11066590B2Water-soluble polymer shale inhibitorsHALLIBURTON ENERGY SERVICES INC·Filed 2018·Granted Jul 20, 2021·1 cites·20 claims
- 1477US10989048B1Systems and methods to detect and quantify contaminants and components of a wellbore servicing fluidHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Apr 27, 2021·1 cites·20 claims
- 1575US12404440B2Environmentally acceptable wellbore stability additiveHALLIBURTON ENERGY SERVICES INC·Filed 2024·Granted Sep 2, 2025·0 cites·20 claims
- 1674US11718777B2Reactive polymeric lost circulation materialsHALLIBURTON ENERGY SERVICES INC·Filed 2022·Granted Aug 8, 2023·0 cites·23 claims
- 1772US12385842B2Quantification of wellbore fluid additives by laser induced breakdown spectroscopyHALLIBURTON ENERGY SERVICES INC·Filed 2023·Granted Aug 12, 2025·0 cites·9 claims
- 1872US11639459B2System and method to quantify fluid additivesHALLIBURTON ENERGY SERVICES INC·Filed 2022·Granted May 2, 2023·0 cites·9 claims
- 1970US11370676B2Methods of removing polymers from treatment fluids for use in subterranean formationsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Jun 28, 2022·0 cites·19 claims
- 2069US12371604B1Drilling fluid additives for high-density reservoir drilling fluidsHALLIBURTON ENERGY SERVICES INC·Filed 2024·Granted Jul 29, 2025·0 cites·20 claims
- 2169US11499087B2Thermally responsive lost circulation materialsHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Nov 15, 2022·0 cites·20 claims
- 2268US10094181B2Fluid loss additive package for shallow well drilling fluidsHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Oct 9, 2018·1 cites·20 claims
- 2367US11292951B2Thermally responsive anti-sag agentsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Apr 5, 2022·0 cites·20 claims
- 2466US2025189499A1Chromium-free halides determination in drilling fluidsHALLIBURTON ENERGY SERVICES INC·Filed 2023·Application pending·0 cites
- 2565US11884851B2Silicate shale inhibitor additivesHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Jan 30, 2024·0 cites·20 claims
- 2665US2025314141A1Fluid loss control additives for drilling fluidsHALLIBURTON ENERGY SERVICES INC·Filed 2024·Application pending·0 cites
- 2764US2025382516A1Core-shell particles for subterranean operationsHALLIBURTON ENERGY SERVICES INC·Filed 2024·Application pending·0 cites
- 2863US11485899B2Methods of reducing zinc concentration in fluidsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Nov 1, 2022·0 cites·20 claims
- 2963US2025146918A1Monitoring nanoparticle additives in wellbore treatment fluid using x-ray fluorescenceHALLIBURTON ENERGY SERVICES INC·Filed 2023·Application pending·0 cites
- 3062US12344793B1Divalent-brine-based high density drilling fluidsHALLIBURTON ENERGY SERVICES INC·Filed 2024·Granted Jul 1, 2025·0 cites·20 claims
- 3162US11448022B2High-intensity acoustic treatment of colloidal mineral suspensions for wellbore operationsHALLIBURTON ENERGY SERVICES INC·Filed 2018·Granted Sep 20, 2022·0 cites·21 claims
- 3262US11130897B2Thermally responsive viscosifiers in subterranean operationsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Sep 28, 2021·0 cites·20 claims
- 3361US12480032B2Wellbore stability compositions comprising nanoparticlesHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Nov 25, 2025·0 cites·20 claims
- 3461US12227691B2Breakable emulsifiersHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Feb 18, 2025·0 cites·19 claims
- 3560US11768190B2Detecting amine-based inhibitors in drilling fluidsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Sep 26, 2023·0 cites·19 claims
- 3660US11360014B1Methods and systems for characterizing fluid composition and process optimization in industrial water operations using MEMS technologyHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Jun 14, 2022·0 cites·20 claims
- 3759US11248156B2Borehole fluid with a thiamine-based shale inhibitorHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Feb 15, 2022·0 cites·20 claims
- 3859US2021403788A1System and method to quantify fluid additivesHALLIBURTON ENERGY SERVICES INC·Filed 2019·Application pending·0 cites
- 3957US11927062B2Methods of manufacturing lost circulation material at a well siteHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Mar 12, 2024·0 cites·9 claims
- 4057US2023065595A1Detection of polymer shale encapsulators in wellbore fluidHALLIBURTON ENERGY SERVICES INC·Filed 2021·Application pending·0 cites
- 4156US11117072B2Ultrasonic breaking of polymer-containing fluids for use in subterranean formationsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Sep 14, 2021·0 cites·18 claims
- 4255US2023151266A1Dried shale inhibitor additivesHALLIBURTON ENERGY SERVICES INC·Filed 2021·Application pending·0 cites
- 4354US11603487B2Low molecular mass organic gelator wellbore stabilizersHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Mar 14, 2023·0 cites·17 claims
- 4454US10703956B2Use of alkali metal silicates during formulation of drilling fluidsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jul 7, 2020·0 cites·7 claims
- 4553US10233374B2Polymer-based drilling fluids containing non-biodegradable materials and methods for use thereofHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Mar 19, 2019·0 cites·9 claims
- 4652US11932803B2Methods and compositions for enhancing clay viscosifiersHALLIBURTON ENERGY SERVICES INC·Filed 2018·Granted Mar 19, 2024·0 cites·12 claims
- 4751US9567508B2Dry drilling fluid additives and methods relating theretoHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Feb 14, 2017·0 cites·19 claims
- 4850US11279870B2Cavitation of polymer-containing fluids for use in subterranean formationsHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Mar 22, 2022·0 cites·18 claims
- 4950US10030187B2Polymer-based drilling fluids containing non-biodegradable particulates and methods for use thereofHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jul 24, 2018·0 cites·9 claims
- 5049US11365338B2Solid shale inhibitor additivesHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Jun 21, 2022·0 cites·11 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →