Patent Assignment
Reel/Frame 025727/0820
Assignment of Assignor's Interest
Recorded: 2011-02-01
Pages: 21
Assignor
EASTMAN CHEMICAL COMPANY
Executed: 2011-01-31
Assignee
GRUPO PETROTEMEX, S.A. DE C.V.
RICARDO MARGAIN NO. 444, TORRE SUR, PISO 16, COL. VALLE DEL CAMPESTRE, SAN PEDRO GARZA GARCIA, NUEVO LEON, 66265, MEXICO
Covered Properties
(85)
Continuous Production of Aromatic Carboxylic Acids
Patent:
5,087,741 →
Application:
07/619,568 →
Process for the Production of Aromatic Carboxylic Acids
Patent:
5,510,521 →
Application:
08/411,363 →
Method of Purifying Aromatic Dicarboxylic Acids
Patent:
6,265,608 →
Application:
09/107,401 →
Process for Production of Aromatic Carboxylic Acids with Improved Water Removal Technique
Two Stage Oxidation Process for the Production of Aromatic Dicarboxylic Acids
Crystallization Method for Production of Purified Aromatic Dicarboxylic Acids
Process for the Production of Purified Terephthalic Acid
Process for Production of a Carboxylic Acid/Diol Mixture Suitable for Use in Polyester Production
Process for Production of a Carboxylic Acid/Diol Mixture Suitable for Use in Polyester Production
Extraction Process for Removal of Impurities from Mother Liquor in the Synthesis of Carboxylic Acid
Extraction Process for Removal of Impurities from an Aqueous Mixture
Extraction Process for Removal of Impurities from Mother Liquor in the Synthesis of Carboxylic Acid
Process for Energy Recovery in Processes for the Preparation of Aromatic Carboxylic Acids
Process for the Oxidative Purification of Terephthalic Acid
Process for the Oxidative Purification of Terephthalic Acid
Process for the Purification of a Crude Carboxylic Acid Slurry
Liquid Phase Oxidation of P-Xylene to Terephthalic Acid in the Presence of a Catalyst System Containing Nickel, Manganese, and Bromine Atoms
In-Line Classifier for Powdered Products
Process for Production of a Dried Carboxylic Acid Cake Suitable for Use in Polyester Production
Process for Production of a Carboxylic Acid/Diol Mixture Suitable for Use in Polyester Production
Steam Recompression in Carboxylic Acid Processes
Process for Removal of Impurities from Mother Liquor in the Synthesis of Carboxylic Acid Using Pressure Filtration
Extraction Process for Removal of Impurities from an Oxidizer Purge Stream in the Synthesis of Carboxylic Acid
Extraction Process for Removal of Impurities from an Oxidizer Purge Stream in the Synthesis of Carboxylic Acid
Process for Removal of Impurities from an Oxidizer Purge Stream
Process for Removal of Impurities from an Oxidizer Purge Stream
Processes for Producing Aromatic Dicarboxylic Acids
Process for Production of a Carboxylic Acid/Diol Mixture Suitable for Use in Polyester Production
Process for Production of a Carboxylic Acid/Diol Mixture Suitable for Use in Polyester Production
Process for Production of a Carboxylic Acid/Diol Mixture Suitable for Use in Polyester Production
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Optimized Production of Aromatic Dicarboxylic Acids
Process for Removal of Benzoic Acid from an Oxidizer Purge Stream
Process for Removal of Benzoic Acid from an Oxidizer Purge Stream
Method for Oxidizing a Slurry Composition in a Post Oxidation Zone in the Presence of Added Steam
Process for the Oxidative Purification of Terephthalic Acid
Process to Enrich a Carboxylic Acid Composition
Process to Produce a Post Catalyst Removal Composition
Polycarboxylic Acid Production System Employing Oxidative Digestion with Reduced or Eliminated Upstream Liquor Exchange
Polycarboxylic Acid Production System Employing Enhanced Multistage Oxidative Digestion
Enriched Carboxylic Acid Composition
Polycarboxylic Acid Production System Employing Hot Liquor Removal Downstream of Oxidative Digestion
Oxidation System with Internal Secondary Reactor
Enriched Isophthalic Acid Composition
Oxidation System Employing Internal Structure for Enhanced Hydrodynamics
Enriched Terephthalic Acid Composition
Polycarboxylic Acid Production System Employing Enhanced Evaporative Concentration Downstream of Oxidative Digestion
Polycarboxylic Acid Production System with Enhanced Heating for Oxidative Digestion
Polycarboxylic Acid Production System Employing Cooled Mother Liquor from Oxidative Digestion as Feed to Impurity Purge System
Polycarboxylic Acid Production System with Enhanced Residence Time Distribution for Oxidative Digestion
Process for Energy Recovery and Water Removal in the Preparation of Aromatic Carboxylic Acids
Carboxylic Acid Production Process
Methods and Apparatus for Isolating Carboxylic Acid
Versatile Oxidation Byproduct Purge Process
Process for Removal of Impurities from Mother Liquor in the Synthesis of Carboxylic Acid Using Pressure Filtration
Optimized Liquid-Phase Oxidation
Optimized Liquid-Phase Oxidation
Oxidation System with Sidedraw Secondary Reactor
Oxidation System with Internal Secondary Reactor
In-Line Classifier for Powdered Products
Optimized Production of Aromatic Dicarboxylic Acids
Optimized Liquid-Phase Oxidation
Power Unit and Safety Circuit Having the Same
Process to Produce an Enriched Composition
Related Assignments
(7)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 30, 2003
From: LIN, ROBERT
To: EASTMAN CHEMICAL COMPANY
Reel/Frame 014222/0200 →
Assignment of Assignor's Interest
Jan 19, 2004
From: SHEPPARD, RONALD BUFORD; TENNANT, BRENT ALAN; WOODRUFF, THOMAS EARL; LIN, ROBERT
To: EASTMAN CHEMICAL COMPANY
Reel/Frame 014266/0856 →
Assignment of Assignor's Interest
Jan 19, 2004
From: SHEPPARD, RONALD BUFORD; TENNANT, BRENT ALAN; WOODRUFF, THOMAS EARL; LIN, ROBERT
To: EASTMAN CHEMICAL COMPANY
Reel/Frame 014266/0887 →
Assignment of Assignor's Interest
Mar 22, 2004
From: LAVOIE, GINO GEORGES
To: EASTMAN CHEMICAL COMPANY
Reel/Frame 014449/0116 →
Assignment of Assignor's Interest
Mar 25, 2004
From: SUMNER, CHARLES EDWAN, JR.; GIBSON, PHILIP EDWARD; LIN, ROBERT; FUGATE, ERIC JACKSON
To: EASTMAN CHEMCIAL COMPANY
Reel/Frame 014458/0757 →
Assignment of Assignor's Interest
May 4, 2004
From: CARVAGNO, LAWRENCE; COOK, WILLIAM L.; DAILEY, RONALD KEITH; SOUTHERLAND, JACOB ANTHONY
To: EASTMAN CHEMCIAL COMPANY
Reel/Frame 014595/0897 →
Change of Name
Jan 11, 2022
From: GRUPO PETROTEMEX, S.A. DE C.V.
To: ALPEK POLYESTER, S.A. DE C.V.
Reel/Frame 058691/0337 →