Inventor · disambiguated record
Ashfaq Shahanawaz Shaikh
Also filed as: SHAIKH ASHFAQ · SHAIKH ASHFAQ SHAHANAWAZ
52 granted patents·2 pending applications·741 citations·filing 2010–2022
99Inventor score
Files withEASTMAN CHEM CO42JANKA MESFIN EJERSSA5SHAIKH ASHFAQ5BUSTAMANTE LAURA ELLEN1PARTIN LEE REYNOLDS1
Top patents by PatentIndex Score
54 records- 0199US10421736B2Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plantEASTMAN CHEM CO·Filed 2018·Granted Sep 24, 2019·15 cites·20 claims
- 0299US8772513B2Oxidation process to produce a crude dry carboxylic acid productEASTMAN CHEM CO·Filed 2013·Granted Jul 8, 2014·43 cites·8 claims
- 0399US8748479B2Process for purifying crude furan 2,5-dicarboxylic acid using hydrogenationEASTMAN CHEM CO·Filed 2013·Granted Jun 10, 2014·46 cites·75 claims
- 0498US9573120B2Furan-2,5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2014·Granted Feb 21, 2017·21 cites·6 claims
- 0598US9504994B2Furan-2,5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2014·Granted Nov 29, 2016·18 cites·13 claims
- 0698US9206149B2Oxidation process to produce a crude dry carboxylic acid productEASTMAN CHEM CO·Filed 2014·Granted Dec 8, 2015·34 cites·10 claims
- 0798US9029580B2Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidationEASTMAN CHEM CO·Filed 2013·Granted May 12, 2015·28 cites·8 claims
- 0898US8969404B2Purifying crude furan 2,5-dicarboxylic acid by hydrogenationEASTMAN CHEM CO·Filed 2013·Granted Mar 3, 2015·41 cites·29 claims
- 0998US8916719B2Process for producing dry purified furan-2,5-dicarboxylic acid with oxidation off-gas treatmentEASTMAN CHEM CO·Filed 2013·Granted Dec 23, 2014·37 cites·10 claims
- 1097US11655227B2Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plantEASTMAN CHEM CO·Filed 2021·Granted May 23, 2023·2 cites·6 claims
- 1197US10695755B2Furan-2,5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2018·Granted Jun 30, 2020·6 cites·15 claims
- 1297US10526301B1Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plantEASTMAN CHEM CO·Filed 2019·Granted Jan 7, 2020·14 cites·20 claims
- 1397US10350584B2Furan-2,5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2016·Granted Jul 16, 2019·11 cites·12 claims
- 1497US10010812B2Furan-2,5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2017·Granted Jul 3, 2018·15 cites·12 claims
- 1597US9944615B2Purifying crude furan 2,5-dicarboxylic acid by hydrogenation and a purge zoneEASTMAN CHEM CO·Filed 2016·Granted Apr 17, 2018·15 cites·19 claims
- 1697US9604202B2Furan-2,5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2014·Granted Mar 28, 2017·16 cites·12 claims
- 1797US8916720B2Process for producing dry purified furan-2,5-dicarboxylic acid with oxidation off-gas treatmentEASTMAN CHEM CO·Filed 2013·Granted Dec 23, 2014·22 cites·15 claims
- 1897US8846960B2Oxidation process to produce a crude and/or purified carboxylic acid productJANKA MESFIN EJERSSA·Filed 2011·Granted Sep 30, 2014·41 cites·22 claims
- 1997US8809556B2Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidationJANKA MESFIN EJERSSA·Filed 2012·Granted Aug 19, 2014·35 cites·12 claims
- 2097US8796477B2Oxidation process to produce a crude and/or purified carboxylic acid productJANKA MESFIN EJERSSA·Filed 2011·Granted Aug 5, 2014·48 cites·13 claims
- 2197US8791277B2Oxidation process to produce a crude and/or purified carboxylic acid productJANKA MESFIN EJERSSA·Filed 2011·Granted Jul 29, 2014·42 cites·18 claims
- 2297US8791278B2Oxidation process to produce a crude and/or purified carboxylic acid productSHAIKH ASHFAQ·Filed 2011·Granted Jul 29, 2014·49 cites·7 claims
- 2396US10723712B2Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plantEASTMAN CHEM CO·Filed 2019·Granted Jul 28, 2020·4 cites·12 claims
- 2496US10406454B2Furan-2,5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2018·Granted Sep 10, 2019·9 cites·12 claims
- 2596US9458122B2Process for purifying crude furan 2,5-dicarboxylic acid using hydrogenationEASTMAN CHEM CO·Filed 2015·Granted Oct 4, 2016·9 cites·8 claims
- 2696US9266850B2Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidationEASTMAN CHEM CO·Filed 2015·Granted Feb 23, 2016·10 cites·11 claims
- 2795US9249118B2Purifying crude furan 2,5-dicarboxylic acid by hydrogenationEASTMAN CHEM CO·Filed 2014·Granted Feb 2, 2016·11 cites·4 claims
- 2894US10882032B2Furan-2,5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2016·Granted Jan 5, 2021·5 cites·5 claims
- 2994US9029581B2Esterification of furan-2,5-dicarboxylic acid to a dialkyl-furan-2,5-dicarboxylate vapor with rectificationEASTMAN CHEM CO·Filed 2014·Granted May 12, 2015·10 cites·20 claims
- 3093US9943834B2Furan-2,5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2014·Granted Apr 17, 2018·14 cites·16 claims
- 3193US9199958B2Oxidation process to produce a crude and/or purified carboxylic acid productEASTMAN CHEM CO·Filed 2014·Granted Dec 1, 2015·10 cites·11 claims
- 3293US8859788B2Esterification of furan-2,5-dicarboxylic acid to a dialkyl-furan-2,5-dicarboxylate vapor with rectificationPARTIN LEE REYNOLDS·Filed 2012·Granted Oct 14, 2014·20 cites·34 claims
- 3392US9428480B2Oxidation process to produce a crude and/or purified carboxylic acid productEASTMAN CHEM CO·Filed 2014·Granted Aug 30, 2016·9 cites·11 claims
- 3491US10611743B2Purifying crude furan 2,5-dicarboxylic acid by hydrogenation and a purge zoneEASTMAN CHEM CO·Filed 2018·Granted Apr 7, 2020·4 cites·14 claims
- 3587US11027263B2Furan-2,5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2020·Granted Jun 8, 2021·1 cites·15 claims
- 3686US10954207B2Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plantEASTMAN CHEM CO·Filed 2020·Granted Mar 23, 2021·1 cites·10 claims
- 3785US9382184B2Processes for producing terephthalic acidEASTMAN CHEM CO·Filed 2015·Granted Jul 5, 2016·2 cites·24 claims
- 3885US8541616B2Addition of a methyl hydrogen terephthalate reactor to a dimethyl terephthalate processBUSTAMANTE LAURA ELLEN·Filed 2010·Granted Sep 24, 2013·15 cites·6 claims
- 3982US11027219B2Furan-2, 5-dicarboxylic acid purge processEASTMAN CHEM CO·Filed 2019·Granted Jun 8, 2021·1 cites·12 claims
- 4080US11066376B2Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plantEASTMAN CHEM CO·Filed 2019·Granted Jul 20, 2021·1 cites·20 claims
- 4178US9676740B2Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidationEASTMAN CHEM CO·Filed 2016·Granted Jun 13, 2017·1 cites·6 claims
- 4276US8968686B2Oxidation system with sidedraw secondary reactorSHAIKH ASHFAQ·Filed 2010·Granted Mar 3, 2015·2 cites·22 claims
- 4372US12151188B2Supersonic treatment of vapor streams for separation and drying of hydrocarbon gasesEASTMAN CHEM CO·Filed 2022·Granted Nov 26, 2024·0 cites·22 claims
- 4472US8790601B2Oxidation system with sidedraw secondary reactorSHAIKH ASHFAQ·Filed 2010·Granted Jul 29, 2014·1 cites·21 claims
- 4570US10436506B2Supersonic separation of hydrocarbonsEASTMAN CHEM CO·Filed 2016·Granted Oct 8, 2019·1 cites·19 claims
- 4668US9849434B2Methods and apparatus for enhanced gas distributionSHAIKH ASHFAQ·Filed 2010·Granted Dec 26, 2017·1 cites·15 claims
- 4766US11266924B2Supersonic treatment of vapor streams for separation and drying of hydrocarbon gasesEASTMAN CHEM CO·Filed 2020·Granted Mar 8, 2022·0 cites·19 claims
- 4866US10011579B2Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidationEASTMAN CHEM CO·Filed 2017·Granted Jul 3, 2018·0 cites·4 claims
- 4966US2018290994A1Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidationEASTMAN CHEM CO·Filed 2018·Application pending·0 cites
- 5061US9212121B2Processes for producing terephthalic acidEASTMAN CHEM CO·Filed 2013·Granted Dec 15, 2015·0 cites·24 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →