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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:	017207/0452			Pages:	4
		Recorded:	01/24/2006
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 28

Patent #:	4380347	Issue Dt:	04/19/1983	Application #:	06202795	Filing Dt:	10/31/1980
Title:	WELL TOOL

Patent #:	4560176	Issue Dt:	12/24/1985	Application #:	06517484	Filing Dt:	07/26/1983
Title:	INVERTED CONE STUFFING BOX

Patent #:	4589483	Issue Dt:	05/20/1986	Application #:	06676842	Filing Dt:	11/30/1984
Title:	ROD CENTALIZER

Patent #:	4575163	Issue Dt:	03/11/1986	Application #:	06687830	Filing Dt:	12/31/1984
Title:	ROD GUIDE

Patent #:	4605248	Issue Dt:	08/12/1986	Application #:	06689412	Filing Dt:	01/07/1985
Title:	INSULATING UNION AND METHOD

Patent #:	4589566	Issue Dt:	05/20/1986	Application #:	06721263	Filing Dt:	04/08/1985
Title:	PRESSURE RESPONSIVE SAFETY INTERLOCK

Patent #:	4643459	Issue Dt:	02/17/1987	Application #:	06743551	Filing Dt:	06/11/1985
Title:	QUICK-CONNECT HOSE COUPLING

Patent #:	4879912	Issue Dt:	11/14/1989	Application #:	07165662	Filing Dt:	03/08/1988
Title:	UNITIZED INSTRUMENT MANIFOLD

Patent #:	4886303	Issue Dt:	12/12/1989	Application #:	07217203	Filing Dt:	07/11/1988
Title:	COUPLING WITH IMPROVED ELASTOMERIC FACE SEAL

Patent #:	4877386	Issue Dt:	10/31/1989	Application #:	07287414	Filing Dt:	12/20/1988
Title:	AUTOMATED SUCKER ROD CLEANING APPARATUS

Patent #:	5028079	Issue Dt:	07/02/1991	Application #:	07422490	Filing Dt:	10/17/1989
Title:	NON-CRUSHING WELLHEAD

Patent #:	5115863	Issue Dt:	05/26/1992	Application #:	07682164	Filing Dt:	04/05/1991
Title:	LOW TURBULENCE ROD GUIDE

Patent #:	5247990	Issue Dt:	09/28/1993	Application #:	07849762	Filing Dt:	03/12/1992
Title:	CENTRALIZER

Patent #:	5277254	Issue Dt:	01/11/1994	Application #:	07997160	Filing Dt:	12/23/1992
Title:	HELICAL ROD GUIDE

Patent #:	5339896	Issue Dt:	08/23/1994	Application #:	08058106	Filing Dt:	05/06/1993
Title:	FIELD INSTALLABLE ROD GUIDE AND METHOD

Patent #:	5358041	Issue Dt:	10/25/1994	Application #:	08067730	Filing Dt:	05/26/1993
Title:	ROD GUIDE

Patent #:	5494104	Issue Dt:	02/27/1996	Application #:	08272414	Filing Dt:	07/08/1994
Title:	SNAP-ON ROD GUIDE

Patent #:	5492373	Issue Dt:	02/20/1996	Application #:	08314054	Filing Dt:	09/28/1994
Title:	WELLHEAD FLANGE FOR INTERCONNECTING A THREADED WELLHEAD AND A FLANGED BLOWOUT PREVENTER

Patent #:	5492174	Issue Dt:	02/20/1996	Application #:	08328725	Filing Dt:	10/25/1994
Title:	ROD GUIDE WITH ENHANCED ERODABLE VOLUME

Patent #:	5549158	Issue Dt:	08/27/1996	Application #:	08437936	Filing Dt:	05/09/1995
Title:	FIELD INSTALLED SLOTTED ROD GUIDE AND METHOD

Patent #:	5605194	Issue Dt:	02/25/1997	Application #:	08492350	Filing Dt:	06/19/1995
Title:	INDEPENDENT SCREWED WELLHEAD WITH HIGH PRESSURE CAPABILITY AND METHOD

Patent #:	5622371	Issue Dt:	04/22/1997	Application #:	08584114	Filing Dt:	01/11/1996
Title:	STUFFING BOX WITH IMPROVED PACKING RINGS AND METHOD

Patent #:	5845909	Issue Dt:	12/08/1998	Application #:	08814025	Filing Dt:	03/10/1997
Title:	STUFFING BOX WITH IMPROVED PACKING RINGS AND METHOD

Patent #:	5755284	Issue Dt:	05/26/1998	Application #:	08821716	Filing Dt:	03/20/1997
Title:	EXTENDED WEAR ROD GUIDE AND METHOD

Patent #:	5873157	Issue Dt:	02/23/1999	Application #:	08862323	Filing Dt:	05/23/1997
Title:	FIELD INSTALLABLE ROD GUIDE AND METHOD

Patent #:	6065537	Issue Dt:	05/23/2000	Application #:	09023595	Filing Dt:	02/13/1998
Title:	ROD GUIDE WITH BOTH HIGH ERODIBLE WEAR VOLUME AND BY-PASS AREA

Patent #:	6312637	Issue Dt:	11/06/2001	Application #:	09547413	Filing Dt:	04/11/2000
Title:	Method of making a rod guide with both high erodible wear volume and by-pass area

Patent #:	D362196	Issue Dt:	09/12/1995	Application #:	29029566	Filing Dt:	10/11/1994
Title:	ROD GUIDE GAUGE

Assignor

Exec Dt:

01/23/2006

Assignee

10586 HIGHWAY 75 NORTH

WILLIS, TEXAS 77378

Correspondence name and address
	LOREN G. HELMREICH, BROWNING BUSHMAN PC
	SUITE 1800
	5718 WESTHEIMER
	HOUSTON, TX 77057

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