Inventor · disambiguated record
Charles W. Stewart
Also filed as: STEWART CHARLES W · STEWART CHARLES WINFIELD · STEWART SR CHARLES W · STEWART SR CHARLES WINFIELD
34 granted patents·1,344 citations·filing 1975–2003
98Inventor score
Files withDU PONT34
Top patents by PatentIndex Score
34 records- 0198US5726247AFluoropolymer nanocompositesDU PONT·Filed 1996·Granted Mar 10, 1998·128 cites·40 claims
- 0295US6423798B2Copolymers of maleic anhydride or acid and fluorinated oleffinsDU PONT·Filed 2001·Granted Jul 23, 2002·42 cites·9 claims
- 0395US4713418ABlends of fluoroplastics and fluoroelastomersDU PONT·Filed 1985·Granted Dec 15, 1987·95 cites·17 claims
- 0494US4952630AModified polytetrafluoroethylene resins and blends thereofDU PONT·Filed 1989·Granted Aug 28, 1990·88 cites·13 claims
- 0593US5707569AProcessing aid system for polyolefinsDU PONT·Filed 1994·Granted Jan 13, 1998·57 cites·25 claims
- 0693US4904726AModified polytetrafluoroethylene resins and blends thereofDU PONT·Filed 1988·Granted Feb 27, 1990·67 cites·17 claims
- 0792US6486280B1Amorphous tetrafluoroethylene-hexafluoropropylene copolymersDU PONT·Filed 2000·Granted Nov 26, 2002·38 cites·18 claims
- 0890US6133389AAmorphous tetrafluoroethylene-hexafluoropropylene copolymersDU PONT·Filed 1997·Granted Oct 17, 2000·62 cites·11 claims
- 0990US5637663AAmorphous tetrafluoroethylene-hexafluoropropylene copolymersDU PONT·Filed 1996·Granted Jun 10, 1997·69 cites·20 claims
- 1090US5132368AFluoropolymer process aids containing functional groupsDU PONT·Filed 1991·Granted Jul 21, 1992·65 cites·70 claims
- 1190US4469846ACore/shell fluoropolymer compositionsDU PONT·Filed 1983·Granted Sep 4, 1984·61 cites·18 claims
- 1290US4174420AUpholstered furniture having improved flame resistanceDU PONT·Filed 1975·Granted Nov 13, 1979·62 cites·37 claims
- 1388US6228963B1Copolymers of maleic anhydride or acid and fluorinated olefinsDU PONT·Filed 1999·Granted May 8, 2001·43 cites·9 claims
- 1487US5478905AAmorphous tetrafluoroethylene/hexafluoropropylene copolymersDU PONT·Filed 1995·Granted Dec 26, 1995·48 cites·12 claims
- 1586US5464904ALow-melting tetrafluoroethylene copolymer and its usesDU PONT·Filed 1994·Granted Nov 7, 1995·55 cites·6 claims
- 1683US5547761ALow melting tetrafluoroethylene copolymer and its usesDU PONT·Filed 1995·Granted Aug 20, 1996·48 cites·14 claims
- 1783US4963609ALow smoke and flame-resistant compositionDU PONT·Filed 1989·Granted Oct 16, 1990·35 cites·13 claims
- 1880US5051479AMelt processable TFE copolymers with improved processabilityDU PONT·Filed 1989·Granted Sep 24, 1991·29 cites·13 claims
- 1980US4294489AUpholstered furniture having improved flame resistanceDU PONT·Filed 1978·Granted Oct 13, 1981·19 cites·3 claims
- 2079US4952636AModified polytetrafluoroethylene resins and blends thereofDU PONT·Filed 1989·Granted Aug 28, 1990·28 cites·8 claims
- 2175US5013792AProcessing aid for polymersDU PONT·Filed 1990·Granted May 7, 1991·38 cites·41 claims
- 2267US5356986APlasticized fluoropolymersDU PONT·Filed 1993·Granted Oct 18, 1994·29 cites·20 claims
- 2366US4507439AElastomeric compositions containing treated PTFEDU PONT·Filed 1983·Granted Mar 26, 1985·19 cites·14 claims
- 2464US5064704AShaped structure of polyarylate copolymers having high tensile elongation at breakDU PONT·Filed 1989·Granted Nov 12, 1991·23 cites·4 claims
- 2563US4596855AElastomeric compositionsDU PONT·Filed 1984·Granted Jun 24, 1986·17 cites·21 claims
- 2661US5057575AProcessing aid for polymersDU PONT·Filed 1991·Granted Oct 15, 1991·17 cites·17 claims
- 2756US6916549B2In situ fluoropolymer polymerization into porous substratesDU PONT·Filed 2003·Granted Jul 12, 2005·1 cites·7 claims
- 2853US4503171AGraphite reinforced perfluoroelastomerDU PONT·Filed 1984·Granted Mar 5, 1985·12 cites·4 claims
- 2949US5821273AExtrusion foaming of fluoropolymersDU PONT·Filed 1997·Granted Oct 13, 1998·13 cites·4 claims
- 3047US6124403AThermoplastic fluoropolymer containing elastomer and production process thereforDU PONT·Filed 1998·Granted Sep 26, 2000·13 cites·21 claims
- 3144US4503192ACured elastomers with improved high temperature tear strengthDU PONT·Filed 1984·Granted Mar 5, 1985·11 cites·4 claims
- 3242US4912166ACurable blends of fluoroelastomer and poly(ether-ketone-ketone)DU PONT·Filed 1988·Granted Mar 27, 1990·7 cites·7 claims
- 3332US4772654AFire resistant polymers containing magnesium oxychlorideDU PONT·Filed 1987·Granted Sep 20, 1988·2 cites·3 claims
- 3430US5185116APreparing shaped structure of polyarylate copolymers having high tensile elongation at breakDU PONT·Filed 1991·Granted Feb 9, 1993·3 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →