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Patent Assignment Abstract of Title

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Total Assignments: 6

Patent #:	4964914	Issue Dt:	10/23/1990	Application #:	07230855	Filing Dt:	08/10/1988
Inventor:	E. L. BUDDY LEATH
Title:	METHOD FOR DISPOSING OF HAZARDOUS WASTE MATERIAL WHILE PRODUCING A REUSABLE BY-PRODUCT

Assignment: 1

Reel/Frame:

004917/0235

Recorded: 08/10/1988

Pages: 1

Conveyance:

ASSIGNMENT OF ASSIGNORS INTEREST.

Assignor:

LEATH, E. L. BUDDY

Exec Dt:

08/05/1988

Assignee:

CHEMICAL RECLAMATION SERVICES, INC., P.O. BOX 69, AVALON, TEXAS 76623, A TEXAS CORP.

Correspondent:

CHARLES D. GUNTER, JR.

FELSMAN, BRADLEY, GUNTER & DILLON

2850 CONTENTAL PLAZA

777 MAIN ST.,

FORT WORTH, TX 76102

Assignment: 2

Reel/Frame:

006970/0315

Recorded: 05/09/1994

Pages: 2

Conveyance:

ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor:

CHEMICAL RECLAMATION SERVICES, INC.

Exec Dt:

04/21/1994

Assignee:

NORTRU, INC.

515 LYCASTE STREET

DETROIT, MICHIGAN 48214

Correspondent:

CHARLES D. GUNTER, JR.

FELSMAN, BRADLEY, GUNTER & DILLON LLP

2600 CONTINENTAL PLAZA

777 MAIN STREET

FORT WORTH, TX 76102

Assignment: 3

Reel/Frame:

009235/0226

Recorded: 06/15/1998

Pages: 48

Conveyance:

SECURITY AGREEMENT

Assignor:

NORTRU, INC.

Exec Dt:

03/16/1998

Assignee:

CANADIAN IMPERIAL BANK OF COMMERCE, AS SECURITY AGENT

7TH FLOOR

COMMERCE COURT WEST

TORONTO, ONTARIO, M5L 1A2, CANADA

Correspondent:

BLAKE, CASSELS & GRAYDON

JANICE K. PRZYSTAL

BOX 25, COMMERCE COURT WEST

SUITE 2800

TORONTO, ONTARIO, CANADA M5L 1A9

Assignment: 4

Reel/Frame:

010731/0814

Recorded: 04/25/2000

Pages: 42

Conveyance:

SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor:

PHILIP SERVICES CORPORATION

Exec Dt:

03/31/2000

Assignee:

FOOTHILL CAPITAL CORPORATION, AS COLLATERAL AGENT

11111 SANTA MONICA BOULEVARD, SUITE 1500

LOS ANGELES, CALIFORNIA 90017

Correspondent:

BROBEECK, PHLEGER & HARRISON, LLP

KIMBERLEY A. LATHROP

550 SOUTH HOPE STREET

LOS ANGELES, CA 90071

Assignment: 5

Reel/Frame:

010748/0910

Recorded: 04/17/2000

Pages: 6

Conveyance:

RELEASE OF SECURITY

Assignor:

CANADIAN IMPERIAL BANK OF COMMERCE, AS SECURITY AGENT

Exec Dt:

03/31/2000

Assignee:

NORTRU, INC.

515 LYCASTE ROAD

DETROIT, MICHIGAN 48214

Correspondent:

BROBECK, PHLEGER & HARRISON LLP

KIMBERLEY A. LATHROP

550 SOUTH HOPE STREET

LOS ANGELES, CA 90071

Assignment: 6

Reel/Frame:

017846/0935

Recorded: 06/01/2006

Pages: 21

Conveyance:

TERMINATION OF SECURITY INTEREST

Assignors:

WELLS FARGO FOOTHILL, INC. (FORMERLY KNOWN AS FOOTHILL CAPITAL CORPORATION), AS TRANCHE A COLLATERAL AGENT

Exec Dt:

12/30/2004

WELLS FARGO FOOTHILL, INC. (FORMERLY KNOWON AS FOOTHILL CAPITAL CORPORATION), AS TRANCHE B COLLATERAL AGENT

Exec Dt:

12/30/2004

HIGH RIVER LIMITED PARTNERSHIP, AS PIK/TERM COLLATERAL AGENT, A DELAWARE LIMITED PARTNERSHIP

Exec Dt:

12/30/2004

Assignees:

PHILIP SERVICES CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

RESI ACQUISITION (DELAWARE) CORPORATION, A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

21ST CENTURY ENVIRONMENTAL MANAGEMENT, INC. OF RHODE ISLAND, A RHODE ISLAND CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ADVANCED ENVIRONMENTAL SYSTEMS, INC., A NEW YORK CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ALLWASTE TANK CLEANING, INC., A GEORGIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ALLWORTH, INC., AN ALABAMA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ALRC, INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ARC DUST PROCESSING (BARBADOS) LIMITED, A BARBADOS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

BURLINGTON ENVIRONMENTAL INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

CAPPCO TUBULAR PRODUCTS USA, INC., A GEORGIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

CHEM-FREIGHT, INC., AN OHIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

CHEMICAL POLLUTION CONTROL INC. OF FLORIDA-A 21ST CENTURY ENVIRONMENTAL MANAGEMENT COMPANY, A FLORIDA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

COUSINS WASTE CONTROL CORPORATION, AN OHIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

21ST CENTURY ENVIRONMENTAL MANAGEMENT, INC. OF NEVADA, A NEVADA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ACE/ALL WASTE ENVIRONMENTAL SERVICES OF INDIANA, INC., AN ILLINOIS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ALLIES STAFFING LTD., AN ONTARIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ALL SAFETY AND SUPPLY, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ALL WASTE RECOVERY SYSTEMS, INC., A GEORGIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

APLC, INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/BIRMINGHAM, INC., AN ALABAMA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

BURLINGTON ENVIRONMENTAL INC., A WASHINGTON CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

CHEM-FAB, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

CHEMICAL POLLUTION CONTROL, INC. OF NEW YORK-A 21ST CENTURY ENVIRONMENTAL MANAGEMENT COMPANY, A NEW YORK CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

CHEMICAL RECLAMATION SERVICES, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

CYANOKEM INC., A MICHIGAN CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

DELTA MAINTENANCE, INC., A LOUISIANA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

IST HOLDING CORP., A COLORADO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

LUNTZ ACQUISITION (DELAWARE) CORPORATION, A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

LUNTZ CORPORATION, A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

NORTRU, INC., A MICHIGAN CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ONEIDA ASBESTOS ABATEMENT INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP AUTOMOTIVE, LTD., A PENNSYLVANIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP CHEMI-SOLV, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP ENVIRONMENTAL SERVICES CORPORATION, A MISSOURI CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP HYDRO-ENGINEERING & SERVICE, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP INDUSTRIAL SERVICES (USA), INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

DEEP CLEAN, INC., A MICHIGAN CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

HARTNEY CORPORATION, A NEVADA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

INDUSTRIAL SERVICES TECHNOLOGIES, INC., A COLORADO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

JESCO INDUSTRIAL SERVICE, INC., A KENTUCKY CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

NORTHLAND ENVIRONMENTAL, INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

NORTRU, LTD., AN ONTARIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ONEIDA ASBESTOS REMOVAL, INC., A NEW YORK CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP ANALYTICAL SERVICES INC., AN ONTARIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP CORROSION SERVICES, INC., A NEVADA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP ENVIRONMENTAL SERVICES, INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP ENVIRONMENTAL (WASHINGTON) INC., A WASHINGTON CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP INDUSTRIAL SERVICES GROUP, INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP INTERNATIONAL DEVELOPMENT INC., A BARBADOS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP/J.D. MEAGHER, INC., A MASSACHUSETTS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP METALS (NEW YORK), INC., A NEW YORK CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP METALS, INC., AN OHIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP OIL RECYCLING, INC., A NORTH DAKOTA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP RECLAMATION SERVICES, HOUSTON, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SCAFFOLD CORPORATION, A COLORADO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES INC., AN ONTARIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/ATLANTA, INC., A GEORGIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES CECATUR INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES (INTERNATIONAL), INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/MISSOURI, INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/NORTH ATLANTIC, INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/OHIO, INC., AN OHIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP INDUSTRIAL SERVICES OF TEXAS, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP INVESTMENT CORP., AN ONTARIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP MECHANICAL SERVICES OF LOUISIANA, INC., A LOUISIANA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP METALS (USA), INC., AN OHIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP METALS RECOVERY (USA) INC., AN ARIZONA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP PLANT SERVICES, INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP REFRACTORY SERVICES, INC., A NEVADA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP/SECO INDUSTRIES, INC., A LOUISIANA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES (PENNSYLVANIA), INC., A PENNSYLVANIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES HAWAII, LTD., A HAWAII CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES CECATUR HOLDINGS LLC, A DELAWARE LIMITED LIABILITY COMPANY

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/LOUISIANA, INC., A LOUISIANA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/MOBILE, INC., AN ALABAMA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/NORTH CENTRAL, INC., AN IOWA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/OKLAHOMA, INC., A OKLAHOMA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES PHENCORP INTERNATIONAL INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/SOUTH CENTRAL, INC., A COLORADO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP ST, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP TECHNICAL SERVICES, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP WEST INDUSTRIAL SERVICES, INC., A CALIFORNIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PIPING COMPANIES, INC., AN OKLAHOMA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PIPING MECHANICAL CORPORATION, A COLORADO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

RECYCLAGE D'ALUMINIUM QUEBEC INC./QUEBEC ALUMINUM RECYCLING INC., A CANADIAN CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

REPUBLIC ENVIRONMENTAL RECYCLING (NEW JERSEY), INC., A NEW JERSEY CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

REPUBLIC ENVIRONMENTAL SYSTEMS (TECHNICAL SERVICES GROUP), INC., A NEW JERSEY CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

RESOURCE RECOVERY CORPORATION, A WASHINGTON CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

RMF GLOBAL, INC., AN OHIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

SERVTECH CANADA, INC., A CANADA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES (PHENCORP) LLC, A DELAWARE LIMITED LIABILITY COMPANY

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP SERVICES/SOUTHWEST, INC., AN ARIZONA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP ST PIPING, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP TRANSPORTATION AND REMEDIATION, INC., A CALIFORNIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PHILIP/WHITING, INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PIPING HOLDINGS CORP., AN OKLAHOMA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

PSC ENTERPRISES, INC., A DELWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

REPUBLIC ENVIRONMENTAL SYSTEMS (PENNSYLVANIA), INC., A PENNSYLVANIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

REPUBLIC ENVIRONMENTAL SYSTEMS (TRANSPORTATION GROUP), INC., A PENNSYLVANIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

RHO-CHEM CORPORATION, A CALIFORNIA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

RMF INDUSTRIAL CONTRACTING, INC., A MICHIGAN CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

SERV-TECH EPC, INC., A NEVADA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

SERV-TECH INTERNATIONAL SALES, INC., U.S. VIRGIN ISLANDS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

SOLVENT RECOVERY CORPORATION, A MISSOURI CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

TERMINAL TECHNOLOGIES, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

TOTAL REFRACTORY SYSTEMS, INC., A NEVADA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

GEORGIA RECOVERY SYSTEMS, A GEORGIA PARTNERSHIP

5151 SAN FELIPE

HOUSTON, TEXAS 77056

SERV-TECH SERVICES, INC., A TEXAS CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

ST DELTA CANADA, INC., AN ONTARIO CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

THERMALKEM, INC., A DELAWARE CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

UNITED INDUSTRIAL MATERIALS, INC., A NEVADA CORPORATION

5151 SAN FELIPE

HOUSTON, TEXAS 77056

GRS/LAKE CHARLES, LTD., A LOUISINA LIMITED PARTNERSHIP

5151 SAN FELIPE

HOUSTON, TEXAS 77056

Correspondent:

LAURA KONRATH

WINSTON & STRAWN LLP

35 W. WACKER DR.

CHICAGO, IL 60601

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