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Patent Assignment Details

NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:	019520/0287			Pages:	5
		Recorded:	06/28/2007
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 23

Patent #:	4243385	Issue Dt:	01/06/1981	Application #:	06015038	Filing Dt:	02/26/1979
Title:	END BLOCK

Patent #:	4320612	Issue Dt:	03/23/1982	Application #:	06178249	Filing Dt:	08/15/1980
Title:	END BLOCK

Patent #:	4649687	Issue Dt:	03/17/1987	Application #:	06330982	Filing Dt:	12/15/1981
Title:	REFRACTORY STRUCTURE AND METHOD

Patent #:	4521357	Issue Dt:	06/04/1985	Application #:	06490816	Filing Dt:	05/02/1983
Title:	CARBON BONDED REFRACTORIES

Patent #:	4578363	Issue Dt:	03/25/1986	Application #:	06573076	Filing Dt:	01/23/1984
Title:	SILICON CARBIDE REFRACTORIES HAVING MODIFIED SILICON NITRIDE BOND

Patent #:	4560350	Issue Dt:	12/24/1985	Application #:	06594512	Filing Dt:	03/29/1984
Title:	END BLOCK

Patent #:	4687752	Issue Dt:	08/18/1987	Application #:	06622922	Filing Dt:	06/21/1984
Title:	MEDIUM WEIGHT ABRASION-RESISTANT CASTABLE

Patent #:	4519442	Issue Dt:	05/28/1985	Application #:	06640711	Filing Dt:	08/14/1984
Title:	HEAT EXCHANGE STRUCTURE

Patent #:	4570910	Issue Dt:	02/18/1986	Application #:	06663736	Filing Dt:	11/29/1984
Title:	METHOD OF CONSTRUCTING A STEELMAKING LADLE

Patent #:	4778526	Issue Dt:	10/18/1988	Application #:	06920269	Filing Dt:	10/14/1986
Title:	GUNNABLE REFRACTORY COMPOSITION

Patent #:	4779798	Issue Dt:	10/25/1988	Application #:	07046958	Filing Dt:	05/07/1987
Title:	GUNNING APPARATUS

Patent #:	4999325	Issue Dt:	03/12/1991	Application #:	07264117	Filing Dt:	10/28/1988
Title:	REBONDED FUSED BRICK

Patent #:	4912068	Issue Dt:	03/27/1990	Application #:	07274387	Filing Dt:	11/21/1988
Title:	MAGNESITE-CARBON REFRACTORIES

Patent #:	5002908	Issue Dt:	03/26/1991	Application #:	07428965	Filing Dt:	10/30/1989
Title:	RESIN BONDED REFRACTORY SHAPE AND METHOD OF MAKING

Patent #:	5060428	Issue Dt:	10/29/1991	Application #:	07477797	Filing Dt:	02/09/1990
Title:	PREFABRICATED WALLS

Patent #:	4957887	Issue Dt:	09/18/1990	Application #:	07497428	Filing Dt:	03/22/1990
Title:	MAGNESITE-CARBON REFRACTORIES

Patent #:	5137603	Issue Dt:	08/11/1992	Application #:	07642251	Filing Dt:	01/16/1991
Title:	OVEN WALLS

Patent #:	5168036	Issue Dt:	12/01/1992	Application #:	07751018	Filing Dt:	08/28/1991
Title:	KILN CARS

Patent #:	5427360	Issue Dt:	06/27/1995	Application #:	08126256	Filing Dt:	09/24/1993
Title:	REFRACTORY BRICK DESIGN FOR OPEN END OF REFRACTORY LINED VESSEL

Patent #:	5824263	Issue Dt:	10/20/1998	Application #:	08589709	Filing Dt:	01/22/1996
Title:	LADLE BRICK LEVELING SET

Patent #:	0032096	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	4189327	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	4050577	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Assignor

Exec Dt:

06/22/2007

Assignee

249 FIFTH AVENUE, ONE PNC PLAZA

PITTSBURGH, PENNSYLVANIA 15222

Correspondence name and address
	MELISSA A. KOSTORICK, PARALEGAL
	THORP REED & ARMSTRONG, LLP
	301 GRANT STREET, 14TH FLOOR
	PITTSBURGH, PA 15219-1425

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