Inventor
SUMNER JR CHARLES EDWAN
US31 patents
⚠️ This page may combine multiple inventors who share the name “SUMNER JR CHARLES EDWAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EASTMAN CHEM CO
21 patentsUS8969404B2Mar 3, 2015
Purifying crude furan 2,5-dicarboxylic acid by hydrogenation
EASTMAN CHEM CO41 citations94
US7132566B2Nov 7, 2006
Process for the purification of a crude carboxylic acid slurry
EASTMAN CHEM CO96 citations94
US5660691AAug 26, 1997
Process for the production of tocotrienol/tocopherol blend concentrates
EASTMAN CHEM CO72 citations93
US9944615B2Apr 17, 2018
Purifying crude furan 2,5-dicarboxylic acid by hydrogenation and a purge zone
EASTMAN CHEM CO15 citations84
US9249118B2Feb 2, 2016
Purifying crude furan 2,5-dicarboxylic acid by hydrogenation
EASTMAN CHEM CO11 citations84
US7485747B2Feb 3, 2009
Two stage oxidation process for the production of aromatic dicarboxylic acids
EASTMAN CHEM CO10 citations84
US10882032B2Jan 5, 2021
Furan-2,5-dicarboxylic acid purge process
EASTMAN CHEM CO5 citations83
US6380352B1Apr 30, 2002
Polyester precursor purification process
EASTMAN CHEM CO10 citations73
US6762276B2Jul 13, 2004
Hydrogenation of polyester oligomers containing terephthalic acid residues
EASTMAN CHEM CO10 citations72
US6291706B1Sep 18, 2001
Hydrogenation of phthalic acids to cyclohexanedicarboxylic acid
EASTMAN CHEM CO13 citations71
US7902396B2Mar 8, 2011
Optimized liquid-phase oxidation
EASTMAN CHEM CO2 citations63
US7582793B2Sep 1, 2009
Optimized liquid-phase oxidation
EASTMAN CHEM CO2 citations63
US7550627B2Jun 23, 2009
Processes for producing aromatic dicarboxylic acids
EASTMAN CHEM CO2 citations57
US7586000B2Sep 8, 2009
Optimized liquid-phase oxidation
EASTMAN CHEM CO4 citations56
US5840970ANov 24, 1998
Process for the purification of naphthalenedicarboxylic acid
EASTMAN CHEM CO6 citations54
US7361784B2Apr 22, 2008
Optimized liquid-phase oxidation
EASTMAN CHEM CO0 citations52
US9382179B2Jul 5, 2016
Nickel modified catalyst for the production of hydroxy ether hydrocarbons by vapor phase hydrogenolysis of cyclic acetals and ketals
EASTMAN CHEM CO1 citations51
US7067615B1Jun 27, 2006
Hydrotreating polyester precursors
EASTMAN CHEM CO1 citations51
US7608732B2Oct 27, 2009
Optimized liquid-phase oxidation
EASTMAN CHEM CO1 citations50
US9822053B2Nov 21, 2017
Single step conversion of N-butyraldehyde to 2-ethylhexanal
EASTMAN CHEM CO1 citations48
US9604896B2Mar 28, 2017
Halogen-free catalyst system and method for producing benzoic acid
EASTMAN CHEM CO0 citations43
JANKA MESFIN EJERSSA
4 patentsUS8796477B2Aug 5, 2014
Oxidation process to produce a crude and/or purified carboxylic acid product
JANKA MESFIN EJERSSA48 citations96
US8846960B2Sep 30, 2014
Oxidation process to produce a crude and/or purified carboxylic acid product
JANKA MESFIN EJERSSA41 citations93
US8791277B2Jul 29, 2014
Oxidation process to produce a crude and/or purified carboxylic acid product
JANKA MESFIN EJERSSA42 citations93
US8614350B2Dec 24, 2013
Carboxylic acid production process employing solvent from esterification of lignocellulosic material
JANKA MESFIN EJERSSA0 citations50