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Patent Assignment Details

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Reel/Frame:	004806/0540			Pages:	3
		Recorded:	12/11/1987
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST.

Total properties: 28

Patent #:	3552502	Issue Dt:		Application #:	04692458	Filing Dt:
Title:

Patent #:	3634227	Issue Dt:		Application #:	04856492	Filing Dt:
Title:

Patent #:	3608653	Issue Dt:		Application #:	04859938	Filing Dt:
Title:

Patent #:	3614761	Issue Dt:		Application #:	04873339	Filing Dt:
Title:

Patent #:	3658015	Issue Dt:		Application #:	05028818	Filing Dt:
Title:

Patent #:	3698003	Issue Dt:		Application #:	05076141	Filing Dt:
Title:

Patent #:	3746102	Issue Dt:		Application #:	05191693	Filing Dt:
Title:

Patent #:	3740739	Issue Dt:		Application #:	05203460	Filing Dt:
Title:

Patent #:	3716707	Issue Dt:		Application #:	05213675	Filing Dt:
Title:

Patent #:	3833076	Issue Dt:		Application #:	05375261	Filing Dt:
Title:

Patent #:	3888109	Issue Dt:		Application #:	05416532	Filing Dt:
Title:

Patent #:	3929014	Issue Dt:		Application #:	05537627	Filing Dt:
Title:

Patent #:	4010012	Issue Dt:		Application #:	05546249	Filing Dt:
Title:

Patent #:	3990252	Issue Dt:		Application #:	05560019	Filing Dt:
Title:

Patent #:	4097249	Issue Dt:		Application #:	05754853	Filing Dt:
Title:

Patent #:	4088457	Issue Dt:		Application #:	05754854	Filing Dt:
Title:

Patent #:	4097253	Issue Dt:		Application #:	05754855	Filing Dt:
Title:

Patent #:	4269567	Issue Dt:	05/26/1981	Application #:	05754857	Filing Dt:	12/27/1976
Title:	MUD DEGASSER PUMP

Patent #:	4152125	Issue Dt:		Application #:	05867794	Filing Dt:
Title:

Patent #:	4108619	Issue Dt:		Application #:	05876282	Filing Dt:
Title:

Patent #:	4213740	Issue Dt:		Application #:	05924526	Filing Dt:
Title:

Patent #:	4253530	Issue Dt:	03/03/1981	Application #:	06082848	Filing Dt:	10/09/1979
Title:	METHOD AND SYSTEM FOR CIRCULATING A GAS BUBBLE FROM A WELL

Patent #:	4285236	Issue Dt:	08/25/1981	Application #:	06097007	Filing Dt:	11/23/1979
Title:	ROTARY TORQUE AND RPM INDICATOR FOR OIL WELL DRILLING RIGS

Patent #:	4610005	Issue Dt:	09/02/1986	Application #:	06161190	Filing Dt:	06/19/1980
Title:	VIDEO BOREHOLE DEPTH MEASURING SYSTEM

Patent #:	4420391	Issue Dt:	12/13/1983	Application #:	06310007	Filing Dt:	10/13/1981
Title:	SCREEN TENSIONING ARRANGEMENT

Patent #:	4495065	Issue Dt:	01/22/1985	Application #:	06472820	Filing Dt:	03/07/1983
Title:	VIBRATORY SCREENING APPARATUS AND METHOD

Patent #:	4696751	Issue Dt:	09/29/1987	Application #:	06892644	Filing Dt:	08/04/1986
Title:	VIBRATORY SCREENING APPARATUS AND METHOD FOR REMOVING SUSPENDED SOLIDS FROM LIQUID

Patent #:	4162473	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Assignor

Exec Dt:

11/11/1987

Assignee

HOUSTON, TEXAS

Correspondence name and address
	DRESSER INDUSTRIES, INC.
	P.O. BOX 718
	DALLAS, TX 75221

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