Inventor · disambiguated record
Robert A. Ashworth
Also filed as: ASHWORTH ROBERT · ASHWORTH ROBERT A
20 granted patents·2 pending applications·711 citations·filing 1976–2025
96Inventor score
Files withAQUAPAK IP LTD4CLEARSTACK COMB CORP3FLORIDA PROGRESS CORP3ASHWORTH ROBERT A2ENERGY & ENVIRON RES CORP2
Top patents by PatentIndex Score
22 records- 0196US4097361AProduction of liquid and gaseous fuel products from coal or the likeMCKEE & CO ARTHUR G·Filed 1976·Granted Jun 27, 1978·84 cites·26 claims
- 0295US4652433AMethod for the recovery of minerals and production of by-products from coal ashFLORIDA PROGRESS CORP·Filed 1986·Granted Mar 24, 1987·178 cites·19 claims
- 0392US11884807B2Process and apparatus for manufacture of processable polyvinyl alcoholAQUAPAK IP LTD·Filed 2021·Granted Jan 30, 2024·3 cites·14 claims
- 0490US6085674ALow nitrogen oxides emissions from carbonaceous fuel combustion using three stages of oxidationCLEARSTACK COMBUSTION CORP·Filed 1999·Granted Jul 11, 2000·75 cites·29 claims
- 0589US6325002B1Low nitrogen oxides emissions using three stages of fuel oxidation and in-situ furnace flue gas recirculationCLEARSTACK COMB CORP·Filed 2000·Granted Dec 4, 2001·45 cites·19 claims
- 0685US6325003B1Low nitrogen oxides emissions from carbonaceous fuel combustion using three stages of oxidationCLEARSTACK COMB CORP·Filed 2000·Granted Dec 4, 2001·50 cites·18 claims
- 0785US4498909AProcess for the gasification of fuelsDM INT INC·Filed 1982·Granted Feb 12, 1985·69 cites·14 claims
- 0882US4423702AMethod for desulfurization, denitrifaction, and oxidation of carbonaceous fuelsASHWORTH ROBERT A·Filed 1983·Granted Jan 3, 1984·31 cites·16 claims
- 0979US5967061AMethod and system for reducing nitrogen oxide and sulfur oxide emissions from carbonaceous fuel combustion flue gasesENERGY & ENVIRON RES CORP·Filed 1997·Granted Oct 19, 1999·57 cites·55 claims
- 1075US12252607B2Process for manufacture of plasticized homopolymeric polyvinyl alcohol and plasticized polyvinyl alcohol polymer obtained therefromAQUAPAK IP LTD·Filed 2021·Granted Mar 18, 2025·0 cites·14 claims
- 1171US12139598B2Process and apparatus for manufacture of processable polyvinyl alcoholAQUAPAK POLYMERS LTD·Filed 2021·Granted Nov 12, 2024·0 cites·13 claims
- 1270US2025154350A1Process and Apparatus for Manufacture of Processable Polyvinyl AlcoholAQUAPAK IP LTD·Filed 2025·Application pending·0 cites
- 1365US4477425AProduction of anhydrous hydrogen fluoride from low-grade metallic fluorides and sulfuric acidFLORIDA PROGRESS CORP·Filed 1983·Granted Oct 16, 1984·15 cites·13 claims
- 1465US4405332AAlternative fuel comprised of sewage sludge and a particulate solid fuelRODRIGUEZ LARRY A·Filed 1981·Granted Sep 20, 1983·14 cites·6 claims
- 1563US4560391AAlternative fuel comprised of sewage sludge and a liquid hydrocarbon fuel oilFLORIDA PROGRESS CORP·Filed 1984·Granted Dec 24, 1985·12 cites·14 claims
- 1659US5458659ADesulfurization of carbonaceous fuelsFLORIDA POWER CORP·Filed 1993·Granted Oct 17, 1995·20 cites·20 claims
- 1758US4395975AMethod for desulfurization and oxidation of carbonaceous fuelsASHWORTH ROBERT A·Filed 1982·Granted Aug 2, 1983·14 cites·14 claims
- 1857US6363869B1Potassium hydroxide flue gas injection technique to reduce acid gas emissions and improve electrostatic precipitator performanceCLEARSTACK COMB CORP·Filed 2000·Granted Apr 2, 2002·9 cites·26 claims
- 1956US6152054AMethod and system for the disposal of coal preparation plant waste coal through slurry co-firing in cyclone-fired boilers to effect a reduction in nitrogen oxide emissionsGE ENERGY AND ENVIRONMENTAL RE·Filed 1999·Granted Nov 28, 2000·18 cites·30 claims
- 2056US5988081AMethod and system for the disposal of coal preparation plant waste coal through slurry co-firing in cyclone-fired boilers to effect a reduction in nitrogen oxide emissionsENERGY & ENVIRON RES CORP·Filed 1997·Granted Nov 23, 1999·17 cites·42 claims
- 2154US12359373B2Polyvinyl alcohol coated cellulosic productsAQUAPAK IP LTD·Filed 2021·Granted Jul 15, 2025·0 cites·18 claims
- 2243US2004202594A1Coal gasification with alkali additives to reduce emissions of mercury to the atmosphereFiled 2004·Application pending·0 cites
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