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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:	022928/0395			Pages:	22
		Recorded:	07/09/2009
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 15

Patent #:	5033266	Issue Dt:	07/23/1991	Application #:	07398414	Filing Dt:	08/25/1989
Title:	OVERCENTER VALVE CONTROL SYSTEM AND METHOD FOR DRILLING

Patent #:	4953639	Issue Dt:	09/04/1990	Application #:	07404601	Filing Dt:	09/08/1989
Title:	CLOSED LOOP HYDRAULIC DRILL FEED SYSTEM

Patent #:	5053126	Issue Dt:	10/01/1991	Application #:	07486575	Filing Dt:	02/28/1990
Title:	APPARATUS FOR GAS LIQUID SEPARATION

Patent #:	5168937	Issue Dt:	12/08/1992	Application #:	07769654	Filing Dt:	10/02/1991
Title:	DRILL FEED CONTROL UTILIZING A VARIABLE OVERCENTER VALVE

Patent #:	5269386	Issue Dt:	12/14/1993	Application #:	07935803	Filing Dt:	08/27/1992
Title:	SELF POSITIONING DUST SEAL HOLDER

Patent #:	5201816	Issue Dt:	04/13/1993	Application #:	07962155	Filing Dt:	10/15/1992
Title:	SIDE ANGLE DRILLING APPARATUS

Patent #:	5277463	Issue Dt:	01/11/1994	Application #:	08001887	Filing Dt:	01/08/1993
Title:	DRILL PIPE HANDLING TOOL

Patent #:	5343962	Issue Dt:	09/06/1994	Application #:	08107415	Filing Dt:	08/16/1993
Title:	DOUBLE ROD CYLINDER FEED SYSTEM

Patent #:	5449047	Issue Dt:	09/12/1995	Application #:	08301605	Filing Dt:	09/07/1994
Title:	AUTOMATIC CONTROL OF DRILLING SYSTEM

Patent #:	5538092	Issue Dt:	07/23/1996	Application #:	08584577	Filing Dt:	01/11/1996
Title:	FLEXIBLE DRILL PIPE

Patent #:	5740702	Issue Dt:	04/21/1998	Application #:	08681591	Filing Dt:	07/29/1996
Title:	DEVICE FOR SPINNING DRILL PIPE IN A DRILL RIG

Patent #:	5791206	Issue Dt:	08/11/1998	Application #:	08762906	Filing Dt:	12/10/1996
Title:	DRILL PIPE HANDLING MECHANISM

Patent #:	6408956	Issue Dt:	06/25/2002	Application #:	09529584	Filing Dt:	08/29/2000
Title:	FEED SYSTEM FOR A ROTARY DRILL TOWER

Patent #:	6672410	Issue Dt:	01/06/2004	Application #:	09962476	Filing Dt:	09/25/2001
Publication #:	US20030056993	Pub Dt:	03/27/2003
Title:	DRILLING MACHINE HAVING A FEED CABLE TENSIONER

Patent #:	6675915	Issue Dt:	01/13/2004	Application #:	09963011	Filing Dt:	09/25/2001
Publication #:	US20030056988	Pub Dt:	03/27/2003
Title:	DRILLING MACHINE HAVING A ROTARY HEAD GUIDE

Assignor

Exec Dt:

06/30/2004

Assignee

2100 NORTH FIRST STREET

GARLAND, TEXAS 75040

Correspondence name and address
	CPA GLOBAL
	LIBERATION HOUSE
	CASTLE STREET
	ST. HELIER, JE1 1BL JERSEY

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