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Patent Assignment Details

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Reel/Frame:	020995/0187			Pages:	5
		Recorded:	05/23/2008
Attorney Dkt #:	097180/8
Conveyance:	PARTIAL RELEASE OF LYONDELL CHEMICAL TECHNOLOGY, L.P. PATENT SECURITY AGREEMENT

Total properties: 15

Patent #:	5614017	Issue Dt:	03/25/1997	Application #:	08621669	Filing Dt:	03/26/1996
Title:	CEMENT ADDITIVES

Patent #:	5565027	Issue Dt:	10/15/1996	Application #:	08627745	Filing Dt:	04/02/1996
Title:	CEMENT COMPOSITION

Patent #:	5670578	Issue Dt:	09/23/1997	Application #:	08762581	Filing Dt:	12/10/1996
Title:	CEMENT ADDITIVES

Patent #:	5725654	Issue Dt:	03/10/1998	Application #:	08870779	Filing Dt:	06/06/1997
Title:	CEMENT COMPOSITION

Patent #:	5985989	Issue Dt:	11/16/1999	Application #:	08890092	Filing Dt:	07/09/1997
Title:	METHOD OF MAKING A WATER REDUCING ADDITIVE FOR CEMENT

Patent #:	6214958	Issue Dt:	04/10/2001	Application #:	09358009	Filing Dt:	07/21/1999
Title:	PROCESS FOR PREPARING COMB-BRANCHED POLYMERS

Patent #:	6815513	Issue Dt:	11/09/2004	Application #:	09760931	Filing Dt:	01/16/2001
Publication #:	US20010001797	Pub Dt:	05/24/2001
Title:	PROCESS FOR PREPARING COMB-BRANCHED POLYMERS

Patent #:	6527850	Issue Dt:	03/04/2003	Application #:	09832646	Filing Dt:	04/11/2001
Publication #:	US20030019401	Pub Dt:	01/30/2003
Title:	USE OF COMB-BRANCHED COPOLYMERS IN GYPSUM COMPOSITIONS

Patent #:	6582510	Issue Dt:	06/24/2003	Application #:	10123683	Filing Dt:	04/16/2002
Title:	USE OF COMB-BRANCHED COPOLYMERS AS PIGMENT DISPERSANTS

Patent #:	6664360	Issue Dt:	12/16/2003	Application #:	10200859	Filing Dt:	07/23/2002
Publication #:	US20030060594	Pub Dt:	03/27/2003
Title:	PREPARATION OF WATER-REDUCING COPOLYMERS FOR CONCRETE

Patent #:	6869988	Issue Dt:	03/22/2005	Application #:	10417289	Filing Dt:	04/16/2003
Publication #:	US20040209979	Pub Dt:	10/21/2004
Title:	SOLID SUPPORTED COMB-BRANCHED COPOLYMERS AS AN ADDITIVE FOR GYPSUM COMPOSITIONS

Patent #:	7070648	Issue Dt:	07/04/2006	Application #:	11153966	Filing Dt:	06/16/2005
Title:	PREPARATION OF GYPSUM COMPOSITIONS

Patent #:	7232875	Issue Dt:	06/19/2007	Application #:	11430758	Filing Dt:	05/09/2006
Title:	PREPARATION OF COMB-BRANCHED POLYMERS

Patent #:	7261772	Issue Dt:	08/28/2007	Application #:	11581930	Filing Dt:	10/17/2006
Title:	GYPSUM COMPOSITION

Assignor

Exec Dt:

05/22/2008

Assignee

1221 MCKINNEY

SUITE 1600

HOUSTON, TEXAS 77010

Correspondence name and address
	SKADDEN, ARPS, SLATE, MEAGHER & FLOM
	ONE BEACON STREET
	ATTN: SCOTT BROWN
	BOSTON, MA 02108

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