Inventor · disambiguated record
William R. Dunnavant
Also filed as: DUNNAVANT WILLIAM R · DUNNAVANT WILLIAM REXFORD
33 granted patents·676 citations·filing 1973–1996
98Inventor score
Top patents by PatentIndex Score
33 records- 0195US4293480AUrethane binder compositions for no-bake and cold box foundry application utilizing isocyanato-urethane polymersASHLAND OIL INC·Filed 1979·Granted Oct 6, 1981·44 cites·24 claims
- 0294US4540724APhenolic resin-polyisocyanate binder systems containing a phosphorus halide and use thereofASHLAND OIL INC·Filed 1984·Granted Sep 10, 1985·62 cites·21 claims
- 0392US4602069APhenolic resin-polyisocyanate binder systems containing a phosphorus based acidASHLAND OIL INC·Filed 1984·Granted Jul 22, 1986·58 cites·57 claims
- 0490US4526219AProcess of forming foundry cores and molds utilizing binder curable by free radical polymerizationASHLAND OIL INC·Filed 1982·Granted Jul 2, 1985·66 cites·20 claims
- 0589US5424376AEster cured no-bake foundry binder systemASHLAND INC·Filed 1993·Granted Jun 13, 1995·48 cites·3 claims
- 0686US4982781ANo-bake process for preparing foundry shapes for casting low melting metal castingsASHLAND OIL INC·Filed 1989·Granted Jan 8, 1991·36 cites·15 claims
- 0785US4683252APhenolic resin-polyisocyanate binder systems containing an organohalophosphate and use thereofASHLAND OIL INC·Filed 1986·Granted Jul 28, 1987·21 cites·13 claims
- 0884US3993684AMonomeric compoundsWESTERN LITHO PLATE & SUPPLY·Filed 1973·Granted Nov 23, 1976·18 cites·11 claims
- 0982US5447968APolyurethane-forming binder systems containing 2,2'-dipyridyl, 1,10-phenanthroline, and their substituted alkyl derivativesASHLAND INC·Filed 1993·Granted Sep 5, 1995·44 cites·20 claims
- 1077US4946876APolyurethane-forming foundry binders containing a polyester polyolASHLAND OIL INC·Filed 1988·Granted Aug 7, 1990·23 cites·6 claims
- 1175US4452299AProcess for casting metalsASHLAND OIL INC·Filed 1983·Granted Jun 5, 1984·26 cites·22 claims
- 1273US4374229AThermosetting resinous molding compositionsASHLAND OIL INC·Filed 1981·Granted Feb 15, 1983·24 cites·11 claims
- 1371US5516859APolyurethane-forming no-bake foundry binder systemsASHLAND INC·Filed 1993·Granted May 14, 1996·17 cites·20 claims
- 1467US5455287AFoundry mixes containing a polyether polyol and their useASHLAND INC·Filed 1994·Granted Oct 3, 1995·26 cites·15 claims
- 1567US5132339APolyurethane-forming foundry binders containing a polyether polyolASHLAND OIL INC·Filed 1990·Granted Jul 21, 1992·16 cites·8 claims
- 1664US4780489AModifiers for aqueous basic solutions of phenolic resole resinsASHLAND OIL INC·Filed 1987·Granted Oct 25, 1988·20 cites·32 claims
- 1761US4766949AHot box process for preparing foundry shapesASHLAND OIL INC·Filed 1987·Granted Aug 30, 1988·9 cites·16 claims
- 1857US4758400AThermosetting molding compoundsASHLAND OIL INC·Filed 1987·Granted Jul 19, 1988·16 cites·10 claims
- 1955US5376696AFoundry mixes based upon reclaimed sandASHLAND OIL INC·Filed 1993·Granted Dec 27, 1994·17 cites·8 claims
- 2055US4412088ACyclopentadiene derivatives, method for preparing, and use thereofASHLAND OIL INC·Filed 1981·Granted Oct 25, 1983·13 cites·26 claims
- 2151US4876294AFoundry binder systems based upon acrylated epoxy resins and epoxy resinsASHLAND OIL INC·Filed 1988·Granted Oct 24, 1989·10 cites·14 claims
- 2250US4529771AComposition, method for preparing and use thereofASHLAND OIL INC·Filed 1984·Granted Jul 16, 1985·3 cites·29 claims
- 2349US4884620AHot box process for preparing foundry shapes with certain aqueous phenolic resin solutionsASHLAND OIL INC·Filed 1988·Granted Dec 5, 1989·7 cites·25 claims
- 2449US4789693AHeat curable foundry mixes and binder compositionsASHLAND OIL INC·Filed 1987·Granted Dec 6, 1988·10 cites·33 claims
- 2547US5908914ABenzylic ether phenolic resole resins and their usesASHLAND INC·Filed 1996·Granted Jun 1, 1999·9 cites·9 claims
- 2645US4320218ABinder compositionASHLAND OIL INC·Filed 1980·Granted Mar 16, 1982·8 cites·17 claims
- 2743US5739255ABenzylic ether phenolic resole resinsASHLAND INC·Filed 1996·Granted Apr 14, 1998·7 cites·18 claims
- 2843US4336342ACost reduction of acid curing foundry binders with alkylated aromatic hydrocarbon solventsASHLAND OIL INC·Filed 1981·Granted Jun 22, 1982·7 cites·10 claims
- 2938US4483961APolymeric cyclopentadiene derivatives, method for preparing and use thereofASHLAND OIL INC·Filed 1983·Granted Nov 20, 1984·5 cites·36 claims
- 3038US4482653ACyclopentadiene derivatives, method for preparing, and use thereofASHLAND OIL INC·Filed 1983·Granted Nov 13, 1984·1 cites·20 claims
- 3134US4394466AFulvene binder compositionsASHLAND OIL INC·Filed 1981·Granted Jul 19, 1983·3 cites·19 claims
- 3232US5338774APolyurethane-forming binder systems containing a polyphosphoryl chlorideASHLAND OIL INC·Filed 1992·Granted Aug 16, 1994·1 cites·9 claims
- 3330US5756640AProcess for preparing benzylic ether phenolic resole resinsASHLAND INC·Filed 1996·Granted May 26, 1998·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →