Inventor
SHEPPARD RONALD BUFORD
US27 patents
⚠️ This page may combine multiple inventors who share the name “SHEPPARD RONALD BUFORD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EASTMAN CHEM CO
21 patentsUS7074954B2Jul 11, 2006
Process for the oxidative purification of terephthalic acid
EASTMAN CHEM CO58 citations95
US11447576B2Sep 20, 2022
Cellulose ester compositions derived from recycled plastic content syngas
EASTMAN CHEM CO12 citations85
US7485747B2Feb 3, 2009
Two stage oxidation process for the production of aromatic dicarboxylic acids
EASTMAN CHEM CO10 citations84
US7196215B2Mar 27, 2007
Process for the production of purified terephthalic acid
EASTMAN CHEM CO15 citations83
US7355068B2Apr 8, 2008
Oxidation system with internal secondary reactor
EASTMAN CHEM CO6 citations73
US6380352B1Apr 30, 2002
Polyester precursor purification process
EASTMAN CHEM CO10 citations73
US7714094B2May 11, 2010
Simplified isophthalic acid process for modifying PET
EASTMAN CHEM CO5 citations62
US7557243B2Jul 7, 2009
Enriched terephthalic acid composition
EASTMAN CHEM CO2 citations62
US7161027B2Jan 9, 2007
Process for the oxidative purification of terephthalic acid
EASTMAN CHEM CO2 citations62
US7816556B2Oct 19, 2010
Polycarboxylic acid production system employing enhanced multistage oxidative digestion
EASTMAN CHEM CO4 citations60
US7884233B2Feb 8, 2011
Enriched terephthalic acid composition
EASTMAN CHEM CO0 citations52
US7491369B2Feb 17, 2009
Oxidation system with internal secondary reactor
EASTMAN CHEM CO0 citations51
US7420082B2Sep 2, 2008
Polycarboxylic acid production system employing hot liquor removal downstream of oxidative digestion
EASTMAN CHEM CO1 citations51
US7358389B2Apr 15, 2008
Oxidation system employing internal structure for enhanced hydrodynamics
EASTMAN CHEM CO0 citations51
US7358392B2Apr 15, 2008
Process for the oxidative purification of terephthalic acid
EASTMAN CHEM CO1 citations51
US7772424B2Aug 10, 2010
Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion
EASTMAN CHEM CO0 citations50
US7566802B2Jul 28, 2009
Process for energy recovery and water removal in the preparation of aromatic carboxylic acids
EASTMAN CHEM CO1 citations50
US7326808B2Feb 5, 2008
Polycarboxylic acid production system employing cooled mother liquor from oxidative digestion as feed to impurity purge system
EASTMAN CHEM CO0 citations50
US10465490B2Nov 5, 2019
Well treatment fiber delivery system
EASTMAN CHEM CO0 citations48
US7432395B2Oct 7, 2008
Enriched carboxylic acid composition
EASTMAN CHEM CO0 citations41
US7501537B2Mar 10, 2009
Polycarboxylic acid production system employing oxidative digestion with reduced or eliminated upstream liquor exchange
EASTMAN CHEM CO0 citations39
FOGLE III RAYMOND ELBERT
5 patentsUS8236921B1Aug 7, 2012
Integrated co-production of dicarboxylic acids
FOGLE III RAYMOND ELBERT0 citations47
US9505692B2Nov 29, 2016
Dicarboxylic acid production with self-fuel oxidative destruction
FOGLE III RAYMOND ELBERT0 citations37
US9493387B2Nov 15, 2016
Dicarboxylic acid production with minimal wastewater generation
FOGLE III RAYMOND ELBERT0 citations37
US9493389B2Nov 15, 2016
Dicarboxylic acid production with enhanced energy recovery
FOGLE III RAYMOND ELBERT0 citations37
US9493388B2Nov 15, 2016
Dicarboxylic acid production with direct fired off-gas heating
FOGLE III RAYMOND ELBERT0 citations37