Inventor · disambiguated record
David Woodruff
Also filed as: WOODRUFF DAVID · WOODRUFF DAVID W · WOODRUFF DAVID WINFIELD
25 granted patents·6 pending applications·559 citations·filing 1989–2022
97Inventor score
Files withGEN ELECTRIC22SABIC INNOVATIVE PLASTICS IP5BERNABE BEATRIZ PENALVER1GUI JOHN YUPENG1SABIC GLOBAL TECHNOLOGIES BV1
Top patents by PatentIndex Score
31 records- 0194US7125954B2Method for producing polyether polymersGEN ELECTRIC·Filed 2005·Granted Oct 24, 2006·18 cites·23 claims
- 0293US9567232B1Method for preparing sodium chloro-aluminateGEN ELECTRIC·Filed 2015·Granted Feb 14, 2017·9 cites·20 claims
- 0393US7714095B2Phase transfer catalyzed method for preparation of polyetherimidesSABIC INNOVATIVE PLASTICS IP·Filed 2006·Granted May 11, 2010·14 cites·31 claims
- 0492US6949622B2Method of separating a polymer from a solventGEN ELECTRIC·Filed 2003·Granted Sep 27, 2005·35 cites·31 claims
- 0592US6630568B1Method for purification of aromatic polyethersGEN ELECTRIC·Filed 2001·Granted Oct 7, 2003·49 cites·79 claims
- 0690US5985368ACoating composition for metal-based substrates, and related processesGEN ELECTRIC·Filed 1998·Granted Nov 16, 1999·89 cites·15 claims
- 0789US9181395B2Optimized emulsion drying process for making micronized polyetherimide polymersSABIC INNOVATIVE PLASTICS IP·Filed 2013·Granted Nov 10, 2015·7 cites·30 claims
- 0889US7902407B2Method for preparation of salts of hydroxy-substituted aromatic compoundsSABIC INNOVATIVE PLASTICS IP·Filed 2005·Granted Mar 8, 2011·8 cites·20 claims
- 0989US7122619B2Method of separating a polymer from a solventGEN ELECTRIC·Filed 2005·Granted Oct 17, 2006·10 cites·22 claims
- 1089US7115785B2Method for making salts hydroxy-substituted hydrocarbonsGEN ELECTRIC·Filed 2003·Granted Oct 3, 2006·21 cites·70 claims
- 1186US8372941B2Method for purification of polyether polymers and mixtures resulting therefromSABIC INNOVATIVE PLASTICS IP·Filed 2007·Granted Feb 12, 2013·6 cites·16 claims
- 1285US6790934B2Method for purification of aromatic polyethersGEN ELECTRIC·Filed 2001·Granted Sep 14, 2004·24 cites·112 claims
- 1384US5759932ACoating composition for metal-based substrates, and related processesGEN ELECTRIC·Filed 1996·Granted Jun 2, 1998·59 cites·34 claims
- 1482US7772435B2Method of forming a dry quaternary ammonium salt mixtureSABIC INNOVATIVE PLASTICS IP·Filed 2006·Granted Aug 10, 2010·5 cites·32 claims
- 1580US5204891AFocal track structures for X-ray anodes and method of preparation thereofGEN ELECTRIC·Filed 1991·Granted Apr 20, 1993·33 cites·8 claims
- 1679US5629970AEmissivity enhanced x-ray targetGEN ELECTRIC·Filed 1996·Granted May 13, 1997·34 cites·20 claims
- 1776US5148463AAdherent focal track structures for X-ray target anodes having diffusion barrier film therein and method of preparation thereofGEN ELECTRIC·Filed 1991·Granted Sep 15, 1992·27 cites·7 claims
- 1874US2022315422A1Production system and method for generating hydrogen gas and carbon productsGEN ELECTRIC·Filed 2022·Application pending·0 cites
- 1971US5693742ASolventless method for making polyarylene ethersGEN ELECTRIC·Filed 1995·Granted Dec 2, 1997·22 cites·14 claims
- 2071US5169685AMethod for forming non-columnar deposits by chemical vapor depositionGEN ELECTRIC·Filed 1990·Granted Dec 8, 1992·35 cites·31 claims
- 2167US5397396AApparatus for chemical vapor deposition of diamond including thermal spreaderGEN ELECTRIC·Filed 1993·Granted Mar 14, 1995·26 cites·15 claims
- 2267US2021047180A1Production system and method for generating hydrogen gas and carbon productsGEN ELECTRIC·Filed 2019·Application pending·0 cites
- 2365US4920012AArticles having coatings of fine-grained and/or equiaxed grain structureGEN ELECTRIC·Filed 1989·Granted Apr 24, 1990·19 cites·9 claims
- 2459US2016145391A1Optimized emulsion drying process for making micronized polyetherimide polymersSABIC GLOBAL TECHNOLOGIES BV·Filed 2015·Application pending·0 cites
- 2554US8729214B2Mixtures resulting from methods for purification of polyether polymersBERNABE BEATRIZ PENALVER·Filed 2013·Granted May 20, 2014·0 cites·8 claims
- 2653US8592548B2Method to prepare bis(haloimides)GUI JOHN YUPENG·Filed 2004·Granted Nov 26, 2013·0 cites·31 claims
- 2745US2006293528A1Method of purifying dianhydridesGEN ELECTRIC·Filed 2005·Application pending·0 cites
- 2841US2005049390A1Phase transfer catalyzed method for preparation of polyetherimidesGEN ELECTRIC·Filed 2003·Application pending·0 cites
- 2940US2006089487A1Method of separating a polymer from a solventSILVI NORBERTO·Filed 2005·Application pending·0 cites
- 3038US5300313AMethod for determining thickness of chemical vapor deposited layersGEN ELECTRIC·Filed 1992·Granted Apr 5, 1994·5 cites·7 claims
- 3136US5372645AMethod for determining thickness of chemical vapor deposited layersGEN ELECTRIC·Filed 1993·Granted Dec 13, 1994·4 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →