Inventor · disambiguated record
Clay Purdy
Also filed as: PURDY CLAY
82 granted patents·20 pending applications·174 citations·filing 2015–2025
99Inventor score
Top patents by PatentIndex Score
102 records- 0198US12123138B2Arylsulfonic acid—modified sulfuric acid and uses thereofSIXRING INC·Filed 2021·Granted Oct 22, 2024·6 cites·17 claims
- 0297US12065628B2Stable nitric acid blends and uses thereofFLUID ENERGY GROUP LTD·Filed 2021·Granted Aug 20, 2024·4 cites·16 claims
- 0397US11982052B2Combination approach to delignification of biomass under ambient conditionsSIXRING INC·Filed 2021·Granted May 14, 2024·12 cites·19 claims
- 0497US11905656B2Approach to biomass delignificationSIXRING INC·Filed 2021·Granted Feb 20, 2024·10 cites·7 claims
- 0597US11821139B2Approach to biomass delignificationSIXRING INC·Filed 2021·Granted Nov 21, 2023·10 cites·24 claims
- 0697US11370961B2Mud acid composition and methods of using suchFLUID ENERGY GROUP LTD·Filed 2020·Granted Jun 28, 2022·5 cites·10 claims
- 0797US11168246B2Methods for stimulating hydrocarbon-bearing formationsFLUID ENERGY GROUP LTD·Filed 2019·Granted Nov 9, 2021·9 cites·11 claims
- 0896US12071724B2Approach to biomass delignificationSIXRING INC·Filed 2021·Granted Aug 27, 2024·10 cites·10 claims
- 0996US12018210B2Methods for stimulating a hydrocarbon-bearing formation by perforating a wellbore and introducing an acidic composition in the wellboreFLUID ENERGY GROUP LTD·Filed 2022·Granted Jun 25, 2024·2 cites·3 claims
- 1096US11760720B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2021·Granted Sep 19, 2023·3 cites·11 claims
- 1196US11098241B2Using synthetic acid compositions as alternatives to conventional acids in the oil and gas industryFLUID ENERGY GROUP LTD·Filed 2017·Granted Aug 24, 2021·11 cites·5 claims
- 1296US10982133B2Modified acid compositions as alternatives to conventional acids in the oil and gas industryFLUID ENERGY GROUP LTD·Filed 2018·Granted Apr 20, 2021·13 cites·21 claims
- 1396US10822535B2Modified acid compositions as alternatives to conventional acids in the oil and gas industryFLUID ENERGY GROUP LTD·Filed 2018·Granted Nov 3, 2020·7 cites·4 claims
- 1495US11668047B2Use of a 2 liquid phase system in biomass delignificationSIXRING INC·Filed 2021·Granted Jun 6, 2023·10 cites·20 claims
- 1595US11485902B2Downhole methodsFLUID ENERGY GROUP LTD·Filed 2020·Granted Nov 1, 2022·3 cites·20 claims
- 1695US11447692B2Using synthetic acid compositions as alternatives to conventional acids in the oil and gas industryFLUID ENERGY GROUP LTD·Filed 2020·Granted Sep 20, 2022·3 cites·13 claims
- 1795US11319479B2Organic acid systemsFLUID ENERGY GROUP LTD·Filed 2020·Granted May 3, 2022·5 cites·14 claims
- 1894US10947123B2Synthetic caustic compositionFLUID ENERGY GROUP LTD·Filed 2018·Granted Mar 16, 2021·5 cites·20 claims
- 1992US11248166B2Composition to reduce friction reducer fouling in wellboresFLUID ENERGY GROUP LTD·Filed 2020·Granted Feb 15, 2022·3 cites·17 claims
- 2092US10035944B2Using synthetic acid compositions as alternatives to conventional acids in the oil and gas industryFLUID ENERGY GROUP LTD·Filed 2015·Granted Jul 31, 2018·9 cites·35 claims
- 2191US12084364B2Modified sulfuric acid and uses thereofCHEMICAL EVOLUTION LTD·Filed 2021·Granted Sep 10, 2024·4 cites·8 claims
- 2291US11781227B2Composition useful in metal sulfide scale removalFLUID ENERGY GROUP LTD·Filed 2020·Granted Oct 10, 2023·2 cites·20 claims
- 2390US10913890B2Synthetic caustic compositionFLUID ENERGY GROUP LTD·Filed 2018·Granted Feb 9, 2021·3 cites·12 claims
- 2488US10280362B2Organic acid compositions for use in the oil and gas industryFLUID ENERGY GROUP LTD·Filed 2016·Granted May 7, 2019·4 cites·16 claims
- 2587US11846067B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2021·Granted Dec 19, 2023·1 cites·15 claims
- 2686US12378727B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2024·Granted Aug 5, 2025·0 cites·14 claims
- 2786US12371854B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2024·Granted Jul 29, 2025·0 cites·17 claims
- 2886US12371853B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2024·Granted Jul 29, 2025·0 cites·18 claims
- 2986US11492542B2Methods for stimulating hydrocarbon-bearing formationsFLUID ENERGY GROUP LTD·Filed 2019·Granted Nov 8, 2022·1 cites·7 claims
- 3086US10590336B2Methods of using novel organic acid compositions in the oil and gas industryFLUID ENERGY GROUP LTD·Filed 2018·Granted Mar 17, 2020·3 cites·11 claims
- 3186US10329476B2Non-regulated synthetic acid compositions for use as alternatives to conventional acids in the oil and gas industryFLUID ENERGY GROUP LTD·Filed 2016·Granted Jun 25, 2019·6 cites·14 claims
- 3285US12398037B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2024·Granted Aug 26, 2025·0 cites·13 claims
- 3385US12270151B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2024·Granted Apr 8, 2025·0 cites·19 claims
- 3485US12234604B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2024·Granted Feb 25, 2025·0 cites·15 claims
- 3585US11293106B2Alkylsulfonic acid compositionsFLUID ENERGY GROUP LTD·Filed 2019·Granted Apr 5, 2022·2 cites·13 claims
- 3685US10753001B2Synthetic hydroxide compositions and uses thereofFLUID ENERGY GROUP LTD·Filed 2016·Granted Aug 25, 2020·3 cites·20 claims
- 3784US12497557B2Methods for stimulating a hydrocarbon-bearing formation by perforating a wellbore and introducing an acidic composition in the wellboreDORF KETAL CHEMICALS FZE·Filed 2024·Granted Dec 16, 2025·0 cites·17 claims
- 3883US12384968B2Inhibited hydrofluoric acid compositionFLUID ENERGY GROUP LTD·Filed 2022·Granted Aug 12, 2025·0 cites·5 claims
- 3983US11898098B2Methods for stimulating hydrocarbon-bearing formationsFLUID ENERGY GROUP LTD·Filed 2022·Granted Feb 13, 2024·0 cites·4 claims
- 4083US11591696B2Corrosion inhibition packageFLUID ENERGY GROUP LTD·Filed 2017·Granted Feb 28, 2023·1 cites·11 claims
- 4183US11046588B2Synthetic caustic compositionFLUID ENERGY GROUP LTD·Filed 2018·Granted Jun 29, 2021·1 cites·20 claims
- 4282US12116677B2Corrosion inhibition packageDORF KETAL CHEMICALS FZE·Filed 2023·Granted Oct 15, 2024·0 cites·14 claims
- 4382US11795381B2Using synthetic acid compositions as alternatives to conventional acids in the oil and gas industryFLUID ENERGY GROUP LTD·Filed 2022·Granted Oct 24, 2023·0 cites·1 claims
- 4480US12320066B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2023·Granted Jun 3, 2025·0 cites·9 claims
- 4580US11591511B2Methods for stimulating a hydrocarbon-bearing formation by perforating a wellbore and introducing and acidic composition in the wellboreFLUID ENERGY GROUP LTD·Filed 2019·Granted Feb 28, 2023·1 cites·23 claims
- 4678US12180423B2Methods for stimulating hydrocarbon-bearing formationsFLUID ENERGY GROUP LTD·Filed 2022·Granted Dec 31, 2024·0 cites·7 claims
- 4778US11891703B2Corrosion inhibition packageDORF KETAL CHEMICALS FZE·Filed 2022·Granted Feb 6, 2024·0 cites·13 claims
- 4877US11965289B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2021·Granted Apr 23, 2024·0 cites·10 claims
- 4977US11905171B2Modified sulfuric acid and uses thereofSIXRING INC·Filed 2021·Granted Feb 20, 2024·0 cites·9 claims
- 5077US2024368834A1Approach to biomass delignificationSIXRING INC·Filed 2024·Application pending·0 cites
Showing the top 50 of 102 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →