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Patent Assignment Details

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Reel/Frame:	017411/0977			Pages:	18
		Recorded:	04/05/2006
Attorney Dkt #:	11046-300138
Conveyance:	AMENDED AND RESTATED PATENT, TRADEMARK AND COPYRIGHT SECURITY AGREEMENT

Total properties: 1

Patent #:	5948734	Issue Dt:	09/07/1999	Application #:	09137601	Filing Dt:	08/21/1998
Title:	WELL TREATMENT FLUID COMPATIBLE SELF-CONSOLIDATING PARTICLES

Assignors

FAIRMOUNT MINERALS, LTD.

Exec Dt:

03/13/2003

BEST SAND CORPORATION

Exec Dt:

03/13/2003

BEST SAND OF PENNSYLVANIA, INC.

Exec Dt:

03/13/2003

CHEYENNE SAND CORP.

Exec Dt:

03/13/2003

CONSTRUCTION AGGREGATES CORPORATION OF MICHIGAN, INC.

Exec Dt:

03/13/2003

SPECIALTY SANDS, INC.

Exec Dt:

03/13/2003

STANDARD SAND CORPORATION

Exec Dt:

03/13/2003

TECHNISAND, INC.

Exec Dt:

03/13/2003

WEDRON SILICA COMPANY

Exec Dt:

03/13/2003

WEXFORD SAND CO.

Exec Dt:

03/13/2003

WISCONSIN INDUSTRIAL SAND COMPANY, L.L.C.

Exec Dt:

03/13/2003

FML HOLDINGS, INC.

Exec Dt:

03/13/2003

FAIRMOUNT MINERALS SALES DE MEXICO, S. DE R.L. DE C.V.

Exec Dt:

03/13/2003

Assignee

NATIONAL CITY BANK

629 EUCLID AVENUE

CLEVELAND, OHIO 44114

Correspondence name and address
	MICHAEL L. DEVER
	301 GRANT STREET
	20TH FLOOR
	PITTSBURGH, PA 15219

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