Inventor · disambiguated record
Qiong Cheng
Also filed as: CHENG QIONG
68 granted patents·20 pending applications·549 citations·filing 1999–2024
99Inventor score
Files withDU PONT49NUTRITION & BIOSCIENCES USA 4 INC16DUPONT IND BIOSCIENCES USA LLC5UNIV NANTONG4CHEN QI3
Top patents by PatentIndex Score
88 records- 0197US10301604B2Engineered glucosyltransferasesDU PONT·Filed 2017·Granted May 28, 2019·36 cites·20 claims
- 0297US10059779B2Enzymatically polymerized gelling dextransDU PONT·Filed 2015·Granted Aug 28, 2018·15 cites·12 claims
- 0396US10351633B2Enzymatic synthesis of soluble glucan fiberDU PONT·Filed 2015·Granted Jul 16, 2019·14 cites·6 claims
- 0496US6660507B2Genes involved in isoprenoid compound productionDU PONT·Filed 2001·Granted Dec 9, 2003·70 cites·8 claims
- 0595US6969595B2Carotenoid production from a single carbon substrateDU PONT·Filed 2001·Granted Nov 29, 2005·54 cites·22 claims
- 0694US6794165B2Biological method for the production of adipic acid and intermediatesDU PONT·Filed 2002·Granted Sep 21, 2004·31 cites·3 claims
- 0793US7662587B1Gene knockout mutations that increase peptide productionDU PONT·Filed 2009·Granted Feb 16, 2010·26 cites·19 claims
- 0892US7678883B2Solubility tags for the expression and purification of bioactive peptidesDU PONT·Filed 2007·Granted Mar 16, 2010·21 cites·14 claims
- 0992US7056717B2Genes involved in isoprenoid compound productionDU PONT·Filed 2003·Granted Jun 6, 2006·26 cites·7 claims
- 1091US11390692B2Enzymatically polymerized gelling dextransNUTRITION & BIOSCIENCES USA 4 INC·Filed 2018·Granted Jul 19, 2022·2 cites·12 claims
- 1191US7034140B2Genes involved in isoprenoid compound productionDU PONT·Filed 2002·Granted Apr 25, 2006·28 cites·8 claims
- 1290US10822383B2Polypeptides capable of producing glucans having alpha-1,2 branches and use of the sameDU PONT·Filed 2016·Granted Nov 3, 2020·4 cites·33 claims
- 1390US6929928B2Genes encoding carotenoid compoundsDU PONT·Filed 2004·Granted Aug 16, 2005·24 cites·11 claims
- 1489US10844324B2Glucan fiber compositions for use in laundry care and fabric careDUPONT IND BIOSCIENCES USA LLC·Filed 2016·Granted Nov 24, 2020·2 cites·25 claims
- 1588US12378535B2Engineered glucosyltransferasesNUTRITION & BIOSCIENCES USA 4 INC·Filed 2024·Granted Aug 5, 2025·0 cites·22 claims
- 1688US11028373B2Engineered glucosyltransferasesNUTRITION & BIOSCIENCES USA 4 INC·Filed 2019·Granted Jun 8, 2021·1 cites·22 claims
- 1788US2025129185A1Enzymatic synthesis of soluble glucan fiberNUTRITION & BIOSCIENCES USA 4 INC·Filed 2024·Application pending·0 cites
- 1887US7951559B2Recombinant peptide production using a cross-linkable solubility tagDU PONT·Filed 2008·Granted May 31, 2011·9 cites·13 claims
- 1987US7098000B2Method for production of C30-aldehyde carotenoidsE I DU PONT DE NEMOURE AND COM·Filed 2004·Granted Aug 29, 2006·28 cites·10 claims
- 2087US7064196B2Genes encoding carotenoid compoundsDU PONT·Filed 2004·Granted Jun 20, 2006·15 cites·1 claims
- 2186US12173091B2Enzymatically polymerized gelling dextransNUTRITION & BIOSCIENCES USA 4 INC·Filed 2022·Granted Dec 24, 2024·0 cites·20 claims
- 2286US11560551B2Engineered glucosyltransferasesNUTRITION & BIOSCIENCES USA 4 INC·Filed 2020·Granted Jan 24, 2023·1 cites·24 claims
- 2386US10865393B2Engineered glucosyltransferasesDUPONT IND BIOSCIENCES USA LLC·Filed 2018·Granted Dec 15, 2020·2 cites·23 claims
- 2486US10822574B2Glucan fiber compositions for use in laundry care and fabric careDUPONT IND BIOSCIENCES USA LLC·Filed 2016·Granted Nov 3, 2020·2 cites·8 claims
- 2586US2025154438A1Glucan fiber compositions for use in laundry care and fabric careNUTRITION & BIOSCIENCES USA 4 INC·Filed 2024·Application pending·0 cites
- 2685US11352589B2Glucan fiber compositions for use in laundry care and fabric careNUTRITION & BIOSCIENCES USA 4 INC·Filed 2020·Granted Jun 7, 2022·1 cites·20 claims
- 2785US8697654B2Peptide linkers for effective multivalent peptide bindingCHENG QIONG·Filed 2009·Granted Apr 15, 2014·9 cites·21 claims
- 2885US7288387B2Genes of strain DC413 encoding enzymes involved in biosynthesis of carotenoid compoundsDU PONT·Filed 2004·Granted Oct 30, 2007·11 cites·15 claims
- 2985US7091031B2Carotenoid hydroxylase enzymesDU PONT·Filed 2005·Granted Aug 15, 2006·6 cites·7 claims
- 3084US7070952B2Genes encoding carotenoid compoundsDU PONT·Filed 2004·Granted Jul 4, 2006·10 cites·12 claims
- 3183US7794979B2Solubility tags for the expression and purification of bioactive peptidesDU PONT·Filed 2010·Granted Sep 14, 2010·4 cites·15 claims
- 3282US6797500B2Genes involved in cyclododecanone degradation pathwayDU PONT·Filed 2002·Granted Sep 28, 2004·8 cites·11 claims
- 3382US6632650B1Genes involved in cyclododecanone degradation pathwayDU PONT·Filed 2000·Granted Oct 14, 2003·8 cites·11 claims
- 3482US2025011381A1Polypeptides capable of producing glucans having alpha (1-->2) linkages and use of the sameNUTRITION & BIOSCIENCES USA 4 INC·Filed 2024·Application pending·0 cites
- 3581US12188055B2Engineered glucosyltransferasesNUTRITION & BIOSCIENCES USA 4 INC·Filed 2023·Granted Jan 7, 2025·0 cites·20 claims
- 3681US7393671B2Mutant carotenoid ketolasesDU PONT·Filed 2006·Granted Jul 1, 2008·3 cites·11 claims
- 3780US8288137B2Recombinant Escherichia coli having enhanced acetyl-coenzyme a synthetase activity for producing glyerol and glycerol-derived productsCHEN QI·Filed 2010·Granted Oct 16, 2012·3 cites·6 claims
- 3879US12110347B2Enzymatic synthesis of soluble glucan fiberNUTRITION & BIOSCIENCES USA 4 INC·Filed 2022·Granted Oct 8, 2024·0 cites·20 claims
- 3979US11946023B2Glucan fiber compositions for use in laundry care and fabric careNUTRITION & BIOSCIENCES USA 4 INC·Filed 2022·Granted Apr 2, 2024·0 cites·26 claims
- 4079US7074604B1Bioproduction of astaxanthin using mutant carotenoid ketolase and carotenoid hydroxylase genesDU PONT·Filed 2004·Granted Jul 11, 2006·8 cites·9 claims
- 4179US7074588B2Carotenoid ketolase geneDU PONT·Filed 2005·Granted Jul 11, 2006·2 cites·14 claims
- 4278US7291482B2Mutations affecting plasmid copy numberDU PONT·Filed 2003·Granted Nov 6, 2007·5 cites·12 claims
- 4378US7252985B2Carotenoid ketolasesDU PONT·Filed 2004·Granted Aug 7, 2007·5 cites·10 claims
- 4477US7794963B2Use of tetracysteine tags in fluorescence-activated cell sorting analysis of prokaryotic cells producing peptides or proteinsDU PONT·Filed 2008·Granted Sep 14, 2010·2 cites·13 claims
- 4577US6984523B2Carotenoid ketolase geneDU PONT·Filed 2002·Granted Jan 10, 2006·4 cites·12 claims
- 4676US11952598B2Engineered glucosyltransferasesNUTRITION & BIOSCIENCES USA 4 INC·Filed 2021·Granted Apr 9, 2024·0 cites·20 claims
- 4776US7425625B2Carotenoid ketolase genes with improved ketocarotenoid yieldDU PONT·Filed 2005·Granted Sep 16, 2008·3 cites·24 claims
- 4876US7232666B2Optimized bacterial host strains of Methylomonas sp. 16aDU PONT·Filed 2004·Granted Jun 19, 2007·7 cites·7 claims
- 4975US11261264B2Enzymatic synthesis of soluble glucan fiberNUTRITION & BIOSCIENCES USA 4 INC·Filed 2019·Granted Mar 1, 2022·0 cites·22 claims
- 5075US8673602B2Recombinant bacteria having improved sucrose utilizationCHEN QI·Filed 2011·Granted Mar 18, 2014·2 cites·5 claims
Showing the top 50 of 88 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →