Inventor
Ronald Buford Sheppard
Inventor
Kingsport, TN, US
Overview
Patents· 26 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds59%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry10%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds7%
Y10TTechnical subjects covered by former us classification7%
Y02PClimate change mitigation technologies in the production or processing of goods5%
B01DSeparation2%
B29BPreparation or pretreatment of the material to be shaped2%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables2%
C09KMaterials for miscellaneous applications, not provided for elsewhere2%
E21BEarth or rock drilling2%
PatentTitleYear
10,465,490Well treatment fiber delivery system20199,505,692'Dicarboxylic acid production with self-fuel oxidative destruction'20169,493,388'Dicarboxylic acid production with direct fired off-gas heating'20169,493,389'Dicarboxylic acid production with enhanced energy recovery'20169,493,387'Dicarboxylic acid production with minimal wastewater generation'20168,236,921'Integrated co-production of dicarboxylic acids'20128,053,597'Enriched terephthalic acid composition'20117,884,233'Enriched terephthalic acid composition'20117,816,556'Polycarboxylic acid production system employing enhanced multistage oxidative digestion'20107,772,424'Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion'20107,714,094'Simplified isophthalic acid process for modifying PET'20107,566,802'Process for energy recovery and water removal in the preparation of aromatic carboxylic acids'20097,557,243'Enriched terephthalic acid composition'20097,501,537'Polycarboxylic acid production system employing oxidative digestion with reduced or eliminated upstream liquor exchange'20097,491,369'Oxidation system with internal secondary reactor'20097,485,747'Two stage oxidation process for the production of aromatic dicarboxylic acids'20097,432,395'Enriched carboxylic acid composition'20087,420,082'Polycarboxylic acid production system employing hot liquor removal downstream of oxidative digestion'20087,358,389'Oxidation system employing internal structure for enhanced hydrodynamics'20087,358,392'Process for the oxidative purification of terephthalic acid'20087,355,068'Oxidation system with internal secondary reactor'20087,326,808'Polycarboxylic acid production system employing cooled mother liquor from oxidative digestion as feed to impurity purge system'20087,196,215'Process for the production of purified terephthalic acid'20077,161,027'Process for the oxidative purification of terephthalic acid'20077,074,954'Process for the oxidative purification of terephthalic acid'20066,380,352'Polyester precursor purification process'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2019Patents assigned to EASTMAN CHEM CO (21)· patent assignee history
2002–2019Based in Kingsport, TN, US· patent location history
2006–2007Based in Voorburg, NL· patent location history
2011–2016Patents assigned to GRUPO PETROTEMEX SA DE CV (5)· patent assignee history
2012–2016Patents assigned to FOGLE III RAYMOND ELBERT (5)· patent assignee history
2012–2016Patents assigned to SHEPPARD RONALD BUFORD (5)· patent assignee history
2012–2016Patents assigned to UPSHAW TIMOTHY ALAN (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EASTMAN CHEM CO | 21 | 2002–2019 |
| FOGLE III RAYMOND ELBERT | 5 | 2012–2016 |
| GRUPO PETROTEMEX SA DE CV | 5 | 2011–2016 |
| SHEPPARD RONALD BUFORDself | 5 | 2012–2016 |
| UPSHAW TIMOTHY ALAN | 5 | 2012–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kingsport, TN, US | 24 | 2002–2019 |
| Voorburg, NL | 2 | 2006–2007 |