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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:	006663/0918			Pages:	5
		Recorded:	08/30/1993
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 14

Patent #:	3980865	Issue Dt:		Application #:	05582611	Filing Dt:
Title:

Patent #:	4335352	Issue Dt:	06/15/1982	Application #:	06102790	Filing Dt:	12/12/1979
Title:	YIELD STRENGTH DETERMINATION OF TERROMGNETIC MATERIALS

Patent #:	4460202	Issue Dt:	07/17/1984	Application #:	06210479	Filing Dt:	11/26/1980
Title:	INTERMEDIATE WEIGHT DRILL STRING MEMBER

Patent #:	4618009	Issue Dt:	10/21/1986	Application #:	06638700	Filing Dt:	08/08/1984
Title:	REAMING TOOL

Patent #:	4717290	Issue Dt:	01/05/1988	Application #:	06942979	Filing Dt:	12/17/1986
Title:	MILLING TOOL

Patent #:	4811800	Issue Dt:	03/14/1989	Application #:	07111222	Filing Dt:	10/22/1987
Title:	METHOD AND APPARATUS FOR DETECTING THE DENSITY OF THICKNESS AND DRILLING

Patent #:	5146989	Issue Dt:	09/15/1992	Application #:	07671812	Filing Dt:	04/02/1991
Title:	APPARATUS FOR RECOVERING A WELLHEAD

Patent #:	5263683	Issue Dt:	11/23/1993	Application #:	07878734	Filing Dt:	05/05/1992
Title:	SLIDING SLEEVE VALVE

Patent #:	5253710	Issue Dt:	10/19/1993	Application #:	07951305	Filing Dt:	09/22/1992
Title:	METHOD AND APPARATUS TO CUT AND REMOVE CASING

Patent #:	4119151	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	3942373	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	3994163	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	4023092	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	4033413	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Assignor

Exec Dt:

03/31/1993

Assignee

SUITE 1000 1360 POST OAK BLVD.

HOUSTON, TX 77056

TEXAS

Correspondence name and address
	GUY MCCLUNG
	SUITE 347
	16690 CHAMPION FOREST DRIVE
	HOUSTON, TX 77379-7023

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