Inventor · disambiguated record
Donald Stevenson
Also filed as: SCHMIDT DAVID A · STEVENSON DONALD · STEVENSON DONALD R
42 granted patents·9 pending applications·586 citations·filing 1974–2022
98Inventor score
Top patents by PatentIndex Score
51 records- 0197US7743536B2Hinged plow and scraper bladeDEGELMAN IND·Filed 2007·Granted Jun 29, 2010·42 cites·9 claims
- 0295US8981042B2Cycloaliphatic polyphosphite polymer stabilizersDOVER CHEMICAL CORP·Filed 2013·Granted Mar 17, 2015·16 cites·4 claims
- 0395US8563637B2Alkylphenol free-liquid polymeric phosphite polymer stabilizersJAKUPCA MICHAEL·Filed 2010·Granted Oct 22, 2013·47 cites·28 claims
- 0493US5438086AHydrolytically stable pentaerythritol diphosphitesFiled 1994·Granted Aug 1, 1995·85 cites·14 claims
- 0590US5364895AHydrolytically stable pentaerythritol diphosphitesDOVER CHEMICAL CORP·Filed 1993·Granted Nov 15, 1994·57 cites·13 claims
- 0686US8445567B2Method for reducing plate-out of solid phosphites in polymersSTEVENSON DONALD·Filed 2010·Granted May 21, 2013·6 cites·14 claims
- 0785US9660896B2System and method for loopback and network loop detection and analysisACCEDIAN NETWORKS INC·Filed 2015·Granted May 23, 2017·4 cites·26 claims
- 0885US4048257APigmentable low shrink thermosetting polyestersSCM CORP·Filed 1975·Granted Sep 13, 1977·33 cites·10 claims
- 0982US8258215B2Mixed alkyl-alkylaryl-phenyl phosphite polymer additiveJAKUPCA MICHAEL·Filed 2010·Granted Sep 4, 2012·4 cites·15 claims
- 1079US5532401AProcess for production of tris(nonylphenyl) phosphiteDOVER CHEMICAL CORP·Filed 1995·Granted Jul 2, 1996·35 cites·14 claims
- 1179US4035439ALow-shrink thermosetting polyestersSCM CORP·Filed 1975·Granted Jul 12, 1977·27 cites·3 claims
- 1278US7320764B2Phosphite ester additive compositionsDOVER CHEMICAL CORP·Filed 2004·Granted Jan 22, 2008·14 cites·37 claims
- 1377US11979308B2System and method for loopback and network loop detection and analysisACCEDIAN NETWORKS INC·Filed 2022·Granted May 7, 2024·0 cites·6 claims
- 1477US9745425B2Cycloaliphatic polyphosphiteDOVER CHEMICAL CORP·Filed 2014·Granted Aug 29, 2017·2 cites·13 claims
- 1575US9982112B2Copolymeric polyphosphite polymer stabilizersDOVER CHEMICAL CORP·Filed 2014·Granted May 29, 2018·1 cites·7 claims
- 1672US7176252B2Solid melt blended phosphite compositesDOVER CHEMICAL CORP·Filed 2004·Granted Feb 13, 2007·17 cites·52 claims
- 1772US6362260B1Phenol-free phosphite stabilizersDOVER CHEMICAL CORP·Filed 1999·Granted Mar 26, 2002·18 cites·25 claims
- 1872US4064194AHigh solids urethane coatingsSCM CORP·Filed 1976·Granted Dec 20, 1977·18 cites·15 claims
- 1970US11516108B2System and method for loopback and network loop detection and analysisACCEDIAN NETWORKS INC·Filed 2020·Granted Nov 29, 2022·0 cites·8 claims
- 2070US7334645B2Articulated power transfer apparatusDEGELMAN IND·Filed 2004·Granted Feb 26, 2008·17 cites·23 claims
- 2168US5495058ANon-ozone depleting chlorination solventsDOVER CHEMICAL CORP·Filed 1994·Granted Feb 27, 1996·10 cites·11 claims
- 2268US3935172ARegular copolyamides as desalination membranesUS INTERIOR·Filed 1974·Granted Jan 27, 1976·13 cites·8 claims
- 2366USD570377SHinged plow and scraper bladeEVANS MILES M E·Filed 2007·Granted Jun 3, 2008·17 cites·1 claims
- 2465US7294684B2Dimeric and polymeric alkylphenol polysulfidesDOVER CHEMICAL CORP·Filed 2006·Granted Nov 13, 2007·1 cites·17 claims
- 2565US5939366ALubrication process using chlorine-free lubricantDOVER CHEMICAL CORP·Filed 1998·Granted Aug 17, 1999·20 cites·16 claims
- 2664US10924378B2System and method for loopback and network loop detection and analysisACCEDIAN NETWORKS INC·Filed 2019·Granted Feb 16, 2021·0 cites·17 claims
- 2763US7470735B2Phenol-free phosphitesDOVER CHEMICAL CORP·Filed 2004·Granted Dec 30, 2008·4 cites·23 claims
- 2860US10419325B2System and method for loopback and network loop detection and analysisACCEDIAN NETWORKS INC·Filed 2018·Granted Sep 17, 2019·0 cites·18 claims
- 2958US10038620B2System and method for loopback and network loop detection and analysisACCEDIAN NETWORKS INC·Filed 2017·Granted Jul 31, 2018·0 cites·18 claims
- 3056US2013225736A1Alkylphenol free - liquid polymeric polyphosphite polymer stabilizersJAKUPCA MICHAEL·Filed 2012·Application pending·0 cites
- 3154US6174125B1Method and apparatus for racking and unracking pipeNEWPORT NEWS S & D CO·Filed 1999·Granted Jan 16, 2001·21 cites·5 claims
- 3253US9538700B2Materials spreaderSTEVENSON DONALD·Filed 2010·Granted Jan 10, 2017·3 cites·33 claims
- 3353US7681385B2Mower liquid herbicide applicatorDEGELMAN IND·Filed 2008·Granted Mar 23, 2010·4 cites·13 claims
- 3453US4002563ARegular copolyamides as desalination membranesUS INTERIOR·Filed 1975·Granted Jan 11, 1977·12 cites·4 claims
- 3552US4246369ACompositions containing carbamothioate curing agents and their usesSCM CORP·Filed 1978·Granted Jan 20, 1981·9 cites·7 claims
- 3651US5780400AChlorine-free extreme pressure fluid additiveDOVER CHEMICAL CORP·Filed 1997·Granted Jul 14, 1998·12 cites·8 claims
- 3750US7595412B2Polymer dispersible polybasic metal carboxylate complexesDOVER CHEMICAL CORP·Filed 2002·Granted Sep 29, 2009·2 cites·46 claims
- 3850US2008314605A1Land rollerDEGELMAN IND·Filed 2008·Application pending·0 cites
- 3947US9382201B2Light-colored metal working additivesDOVER CHEMICAL CORP·Filed 2014·Granted Jul 5, 2016·0 cites·1 claims
- 4047US8664171B2Nitrated extreme pressure additives and blendsSTEVENSON DONALD·Filed 2008·Granted Mar 4, 2014·0 cites·3 claims
- 4147US4178326ALow-shrink thermosetting polyestersOWENS CORNING FIBERGLASS CORP·Filed 1977·Granted Dec 11, 1979·8 cites·12 claims
- 4244US4133916ACoating process with compositions of active hydrogen compound, unsaturated or epoxy compound, and carbamothioate curing agentSCM CORP·Filed 1977·Granted Jan 9, 1979·5 cites·7 claims
- 4341US2014068165A1Splitting a real-time thread between the user and kernel spaceDECORTE THIERRY·Filed 2012·Application pending·0 cites
- 4441US2015203636A1Cycloaliphatic polyphosphite polymer stabilizersDOVER CHEMICAL CORP·Filed 2015·Application pending·0 cites
- 4540US8278490B2Phase transfer catalyst for synthesis of pentaerythritol diphosphitesSTEVENSON DONALD·Filed 2010·Granted Oct 2, 2012·0 cites·11 claims
- 4638US2016340493A1Alkylphenol-free Polymeric Polyphosphite Stabilizer for Rubber CompositionsDOVER CHEMICAL CORP·Filed 2016·Application pending·0 cites
- 4738US2016237264A1Alkylphenol-free Polymeric Polyphosphite Stabilizer for Polyolefin Compositions for Film, Fiber and Molded ArticlesDOVER CHEMICAL CORP·Filed 2016·Application pending·0 cites
- 4838US2011284253A1Disc cultivatorSTEVENSON DONALD·Filed 2010·Application pending·0 cites
- 4936US4204932AProcess for electrodeposition of compositions containing carbamothioate curing agentsSCM CORP·Filed 1978·Granted May 27, 1980·2 cites·9 claims
- 5035US2012048956A1Materials spreaderSTEVENSON DONALD·Filed 2010·Application pending·0 cites
Showing the top 50 of 51 patent records by PatentIndex Score.
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