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Reel/Frame:	023471/0891			Pages:	19
		Recorded:	11/06/2009
Attorney Dkt #:	181021
Conveyance:	AMENDED AND RESTATED PATENT SECURITY AGREEMENT

Total properties: 62

1

Patent #:	4902426	Issue Dt:	02/20/1990	Application #:	07196904	Filing Dt:	05/20/1988
Title:	ION EXCHANGE COMPOSITIONS

2

Patent #:	4995984	Issue Dt:	02/26/1991	Application #:	07408289	Filing Dt:	09/18/1989
Title:	SUPPORTED HETEROPOLYCYCLIC COMPOUNDS IN THE SEPARATION AND REMOVAL OF LATE TRANSITION METALS

3

Patent #:	5128068	Issue Dt:	07/07/1992	Application #:	07529092	Filing Dt:	05/25/1990
Title:	METHOD AND APPARATUS FOR CLEANING CONTAMINATED PARTICULATE MATERIAL

4

Patent #:	5242503	Issue Dt:	09/07/1993	Application #:	07628557	Filing Dt:	12/17/1990
Title:	METHOD OF RESTORING CONTAMINATED SOLIDS USING ION EXCHANGE POWDER CONTACT

5

Patent #:	5268128	Issue Dt:	12/07/1993	Application #:	07648673	Filing Dt:	01/31/1991
Title:	METHOD AND APPARATUS FOR CLEANING CONTAMINATED PARTICULATE MATERIAL

6

Patent #:	5300258	Issue Dt:	04/05/1994	Application #:	07722458	Filing Dt:	06/27/1991
Title:	METHOD FOR DECONTAMINATING SOIL CONTAINING RESINS

7

Patent #:	5156722	Issue Dt:	10/20/1992	Application #:	07737891	Filing Dt:	07/25/1991
Title:	DECONTAMINATION OF RADIOACTIVE METALS

8

Patent #:	5188649	Issue Dt:	02/23/1993	Application #:	07741301	Filing Dt:	08/07/1991
Title:	PROCESS FOR VITRIFYING ASBESTOS CONTAINING WASTE, INFECTIOUS WASTE, TOXIC MATERIALS AND RADIOACTIVE WASTE

9

Patent #:	5244575	Issue Dt:	09/14/1993	Application #:	07753153	Filing Dt:	08/30/1991
Title:	PROCESS FOR RECOVERING ORGANIC SOLVENTS AND CONTAMINANTS FROM SOAP LIQUIDS

10

Patent #:	5431295	Issue Dt:	07/11/1995	Application #:	07758220	Filing Dt:	09/12/1991
Title:	STORAGE MODULE FOR NUCLEAR WASTE WITH IMPROVED LINER

11

Patent #:	5225114	Issue Dt:	07/06/1993	Application #:	07763655	Filing Dt:	09/18/1991
Title:	MULTIPURPOSE CONTAINER FOR LOW-LEVEL RADIOACTIVE WASTE

12

Patent #:	5183541	Issue Dt:	02/02/1993	Application #:	07769998	Filing Dt:	10/02/1991
Title:	DECONTAMINATION OF RADIOACTIVE METALS

13

Patent #:	5217585	Issue Dt:	06/08/1993	Application #:	07811474	Filing Dt:	12/20/1991
Title:	TRANSITION METAL DECONTAMINATION PROCESS

14

Patent #:	5316223	Issue Dt:	05/31/1994	Application #:	07870962	Filing Dt:	04/20/1992
Title:	METHOD AND APPARATUS FOR CLEANING CONTAMINATED PARTICULATE MATERIAL

15

Patent #:	5288435	Issue Dt:	02/22/1994	Application #:	07877299	Filing Dt:	05/01/1992
Title:	TREATMENT OF RADIOACTIVE WASTES

16

Patent #:	5340372	Issue Dt:	08/23/1994	Application #:	07906306	Filing Dt:	06/29/1992
Title:	PROCESS FOR VITRIFYING ASBESTOS CONTAINING WASTE, INFECTIOUS WASTE, TOXIC MATERIALS AND RADIOACTIVE WASTE

17

Patent #:	5294310	Issue Dt:	03/15/1994	Application #:	07913658	Filing Dt:	07/16/1992
Title:	SURFACTANT RECOVERY PROCESS

18

Patent #:	5292695	Issue Dt:	03/08/1994	Application #:	07978265	Filing Dt:	11/18/1992
Title:	PROCESS FOR REACTIVATING PARTICULATE ADSORBENTS

19

Patent #:	5262019	Issue Dt:	11/16/1993	Application #:	07991807	Filing Dt:	12/16/1992
Title:	DECONTAMINATION OF RADIOACTIVE METALS

20

Patent #:	5640701	Issue Dt:	06/17/1997	Application #:	07997076	Filing Dt:	12/29/1992
Title:	METHOD FOR REMEDIATING SOIL CONTAINING RADIOACTIVE CONTAMINANTS

21

Patent #:	5331674	Issue Dt:	07/19/1994	Application #:	07999041	Filing Dt:	12/31/1992
Title:	NUCLEAR REACTOR COOLANT SYSTEM INVENTORY CONTROL SYSTEM AND METHOD

22

Patent #:	5405590	Issue Dt:	04/11/1995	Application #:	08015022	Filing Dt:	02/05/1993
Title:	OFF-GAS SCRUBBER SYSTEM

23

Patent #:	5416251	Issue Dt:	05/16/1995	Application #:	08030803	Filing Dt:	03/12/1993
Title:	METHOD AND APPARATUS FOR THE SOLIDIFICATION OF RADIOACTIVE WASTES AND PRODUCTS PRODUCED THEREBY

24

Patent #:	5330658	Issue Dt:	07/19/1994	Application #:	08032362	Filing Dt:	03/17/1993
Title:	SOLUTION DECONTAMINATION METHOD USING PRECIPITATION AND FLOCCULATION TECHNIQUES

25

Patent #:	5370827	Issue Dt:	12/06/1994	Application #:	08042188	Filing Dt:	04/02/1993
Title:	SOLUTION DECONTAMINATION METHOD USING PRECIPITATION TECHNIQUES

26

Patent #:	5372650	Issue Dt:	12/13/1994	Application #:	08052509	Filing Dt:	04/27/1993
Title:	METHOD FOR TREATMENT OF WASTE SAND

27

Patent #:	5361910	Issue Dt:	11/08/1994	Application #:	08067190	Filing Dt:	05/26/1993
Title:	MODIFIED MINERAL JIG

28

Patent #:	5430236	Issue Dt:	07/04/1995	Application #:	08105586	Filing Dt:	08/13/1993
Title:	METHOD FOR VITRIFYING ASH

29

Patent #:	5322116	Issue Dt:	06/21/1994	Application #:	08107339	Filing Dt:	08/16/1993
Title:	VERY HIGH TEMPERATURE HEAT EXCHANGER

30

Patent #:	5436384	Issue Dt:	07/25/1995	Application #:	08137457	Filing Dt:	10/18/1993
Title:	PROCESS FOR THE REMEDIATION OF CONTAMINATED PARTICULATE MATERIAL

31

Patent #:	5425792	Issue Dt:	06/20/1995	Application #:	08158195	Filing Dt:	11/24/1993
Title:	METHOD FOR GASIFYING ORGANIC MATERIALS

32

Patent #:	5402455	Issue Dt:	03/28/1995	Application #:	08177902	Filing Dt:	01/06/1994
Title:	WASTE CONTAINMENT COMPOSITE

33

Patent #:	5416257	Issue Dt:	05/16/1995	Application #:	08198758	Filing Dt:	02/18/1994
Title:	OPEN FROZEN BARRIER FLOW CONTROL AND REMEDIATION OF HAZARDOUS SOIL

34

Patent #:	5470544	Issue Dt:	11/28/1995	Application #:	08221989	Filing Dt:	04/01/1994
Title:	SYSTEM FOR STEAM-REFORMING OF LIQUID OR SLURRY FEED MATERIAL

35

Patent #:	5427738	Issue Dt:	06/27/1995	Application #:	08225438	Filing Dt:	04/08/1994
Title:	METHOD AND SYSTEM FOR DETOXIFYING SOLID WASTE

36

Patent #:	5439562	Issue Dt:	08/08/1995	Application #:	08261862	Filing Dt:	06/17/1994
Title:	ELECTROCHEMICAL DECONTAMINATION OF RADIOACTIVE METALS BY ALKALINE PROCESSING

37

Patent #:	5585531	Issue Dt:	12/17/1996	Application #:	08319736	Filing Dt:	10/07/1994
Title:	METHOD FOR PROCESSING LIQUID RADIOACTIVE WASTE

38

Patent #:	5582800	Issue Dt:	12/10/1996	Application #:	08365351	Filing Dt:	12/28/1994
Title:	METHOD AND SYSTEM FOR REMOVAL OF HARMFUL HETEROATOMS IN GASEOUS WASTE STREAMS

39

Patent #:	5672278	Issue Dt:	09/30/1997	Application #:	08435148	Filing Dt:	05/05/1995
Title:	METHOD AND SYSTEM FOR SUPPRESSION OF FOAM OF WASTE STREAMS

40

Patent #:	5789648	Issue Dt:	08/04/1998	Application #:	08451449	Filing Dt:	05/26/1995
Title:	ARTICLE MADE OUT OF RADIOACTIVE OR HAZARDOUS WASTE AND A METHOD OF MAKING THE SAME

41

Patent #:	5851246	Issue Dt:	12/22/1998	Application #:	08486371	Filing Dt:	06/07/1995
Title:	APPARATUS FOR GASIFYING ORGANIC MATERIALS

42

Patent #:	5656044	Issue Dt:	08/12/1997	Application #:	08486372	Filing Dt:	06/07/1995
Title:	METHOD AND APPARATUS FOR GASIFICATION OF ORGANIC MATERIALS

43

Patent #:	5640704	Issue Dt:	06/17/1997	Application #:	08506057	Filing Dt:	07/24/1995
Title:	PROCESS FOR SOLIDIFICATION AND IMMOBILIZATION OF HARMFUL WASTE SPECIES

44

Patent #:	5678236	Issue Dt:	10/14/1997	Application #:	08589252	Filing Dt:	01/23/1996
Title:	METHOD AND APPARATUS FOR ELIMINATING VOLATILES OR AIRBORNE ENTRAINMENTS WHEN VITRIFYING RADIOACTIVE AND/OR HAZARDOUS WASTE

45

Patent #:	5720878	Issue Dt:	02/24/1998	Application #:	08612250	Filing Dt:	03/07/1996
Title:	PANEL FILTER SYSTEM

46

Patent #:	5724669	Issue Dt:	03/03/1998	Application #:	08732558	Filing Dt:	10/15/1996
Title:	METAL DECONTAMINATION PROCESS AND SYSTEMS FOR ACCOMPLISHING SAME

47

Patent #:	5876590	Issue Dt:	03/02/1999	Application #:	08772475	Filing Dt:	12/23/1996
Title:	ELECTROCHEMICAL LEACHING OF SOIL

48

Patent #:	5879566	Issue Dt:	03/09/1999	Application #:	08792411	Filing Dt:	02/03/1997
Title:	INTEGRATED STEAM REFORMING OPERATION FOR PROCESSING ORGANIC CONTAMINATED SLUDGES AND SYSTEM

49

Patent #:	5954936	Issue Dt:	09/21/1999	Application #:	08818484	Filing Dt:	03/14/1997
Title:	ROBUST TECHNETIUM REMOVAL METHOD AND SYSTEM

50

Patent #:	5837122	Issue Dt:	11/17/1998	Application #:	08837614	Filing Dt:	04/21/1997
Title:	ELECTROWINNING ELECTRODE, CELL AND PROCESS

51

Patent #:	5831143	Issue Dt:	11/03/1998	Application #:	08843418	Filing Dt:	04/15/1997
Title:	METHOD FOR DETECTING HYDROGEN IN WASTE COMPOUNDS

52

Patent #:	5868814	Issue Dt:	02/09/1999	Application #:	08936144	Filing Dt:	09/22/1997
Title:	APPARATUS FOR RECIRCULATING MOLTEN GLASS

53

Patent #:	6334337	Issue Dt:	01/01/2002	Application #:	09375805	Filing Dt:	08/17/1999
Title:	AIR BUBBLER TO INCREASE GLASS PRODUCTION RATE

54

Patent #:	6387274	Issue Dt:	05/14/2002	Application #:	09537067	Filing Dt:	03/28/2000
Title:	System and method for the removal of radioactive particulate from liquid waste

55

Patent #:	6448564	Issue Dt:	09/10/2002	Application #:	09580631	Filing Dt:	05/30/2000
Title:	APPARATUS, METHODS, AND SYSTEMS FOR ASSAYING MATERIALS

56

Patent #:	6578514	Issue Dt:	06/17/2003	Application #:	09867653	Filing Dt:	05/31/2001
Publication #:	US20020005253	Pub Dt:	01/17/2002
Title:	MODULAR DEVICE OF TUBULAR PLASMA SOURCE

57

Patent #:	6709599	Issue Dt:	03/23/2004	Application #:	10111721	Filing Dt:	04/26/2002
Title:	WASTE WATER TREATMENT SYSTEM WITH SLIP STREAM

58

Patent #:	7067057	Issue Dt:	06/27/2006	Application #:	10154693	Filing Dt:	05/24/2002
Publication #:	US20020179545	Pub Dt:	12/05/2002
Title:	FLUID CONVEYED MATERIAL COLLECTION SYSTEM

59

Patent #:	7563939	Issue Dt:	07/21/2009	Application #:	11303065	Filing Dt:	12/14/2005
Publication #:	US20070131621	Pub Dt:	06/14/2007
Title:	METHOD FOR TREATING RADIOACTIVE WASTE WATER

60

Patent #:	7855313	Issue Dt:	12/21/2010	Application #:	11364643	Filing Dt:	02/28/2006
Publication #:	US20060211908	Pub Dt:	09/21/2006
Title:	LOW-TEMPERATURE SOLIDIFICATION OF RADIOACTIVE AND HAZARDOUS WASTES

61

Patent #:	NONE	Issue Dt:		Application #:	11696444	Filing Dt:	04/04/2007
Publication #:	US20080249347	Pub Dt:	10/09/2008
Title:	Waste Stabilization and Packaging System for Fissile Isotope-Laden Wastes

62

Patent #:	D538611	Issue Dt:	03/20/2007	Application #:	29236597	Filing Dt:	08/18/2005
Title:	LID LIFTER

Assignors

1

CHEM-NUCLEAR SYSTEMS, LLC

Exec Dt:

09/23/2009

2

Exec Dt:

09/23/2009

3

DURATEK SERVICES, INC.

Exec Dt:

09/23/2009

4

ENERGYSOLUTIONS DIVERSIFIED SERVICES, INC.

Exec Dt:

09/23/2009

5

ENERGYSOLUTIONS, LLC

Exec Dt:

09/23/2009

Assignee

1

CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT

390 GREENWICH STREET

NEW YORK, NEW YORK 10013

Correspondence name and address
	CORPORATION SERVICE COMPANY
	1090 VERMONT AVENUE NW, SUITE 430
	ATTN: JEAN PATERSON
	WASHINGTON, DC 20005

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