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Patent Assignment Details

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Reel/Frame:	015676/0051			Pages:	4
		Recorded:	02/11/2005
Conveyance:	RELEASE OF SECURITY INTEREST

Total properties: 30

Patent #:	4629029	Issue Dt:	12/16/1986	Application #:	06798794	Filing Dt:	11/15/1985
Title:	MULTIPLE DRIVER MANIFOLD

Patent #:	4718099	Issue Dt:	01/05/1988	Application #:	06823668	Filing Dt:	01/29/1986
Title:	AUTOMATIC GAIN CONTROL FOR HEARING AID

Patent #:	4685532	Issue Dt:	08/11/1987	Application #:	06832155	Filing Dt:	02/21/1986
Title:	CONSTANT DIRECTIVITY LOUDSPEAKER HORN

Patent #:	D317525	Issue Dt:	06/18/1991	Application #:	06934128	Filing Dt:	11/24/1986
Title:	BAND FOR HEADSET

Patent #:	5020630	Issue Dt:	06/04/1991	Application #:	07447608	Filing Dt:	12/08/1989
Title:	LOUDSPEAKER AND HORN THEREFOR

Patent #:	D333137	Issue Dt:	02/09/1993	Application #:	07685560	Filing Dt:	04/12/1991
Title:	HEADSET

Patent #:	D345981	Issue Dt:	04/12/1994	Application #:	07903620	Filing Dt:	06/24/1992
Title:	HEADSET

Patent #:	5568205	Issue Dt:	10/22/1996	Application #:	08097792	Filing Dt:	07/26/1993
Title:	CAMERA MOUNTED WIRELESS AUDIO/VIDEO TRANSMITTER SYSTEM

Patent #:	5483528	Issue Dt:	01/09/1996	Application #:	08321428	Filing Dt:	10/11/1994
Title:	TDM DIGITAL MATRIX INTERCOM SYSTEM

Patent #:	5802183	Issue Dt:	09/01/1998	Application #:	08567942	Filing Dt:	12/06/1995
Title:	BTE ASSISTIVE LISTENING RECEIVER WITH INTERCHANGEABLE CRYSTALS

Patent #:	5862241	Issue Dt:	01/19/1999	Application #:	08642757	Filing Dt:	05/03/1996
Title:	ADJUSTABLE HEADSET

Patent #:	5903655	Issue Dt:	05/11/1999	Application #:	08734796	Filing Dt:	10/23/1996
Title:	COMPRESSION SYSTEMS FOR HEARING AIDS

Patent #:	6069878	Issue Dt:	05/30/2000	Application #:	08769965	Filing Dt:	12/19/1996
Title:	TDM DIGITAL MATRIX INTERCOM SYSTEM

Patent #:	6278786	Issue Dt:	08/21/2001	Application #:	09124686	Filing Dt:	07/29/1998
Title:	ACTIVE NOISE CANCELLATION AIRCRAFT HEADSET SYSTEM

Patent #:	D357477	Issue Dt:	04/18/1995	Application #:	29022716	Filing Dt:	05/11/1994
Title:	HEADSET

Patent #:	D368719	Issue Dt:	04/09/1996	Application #:	29022726	Filing Dt:	05/11/1994
Title:	MICROPHONE

Patent #:	D365564	Issue Dt:	12/26/1995	Application #:	29022767	Filing Dt:	05/11/1994
Title:	MICROPHONE

Patent #:	D366486	Issue Dt:	01/23/1996	Application #:	29029556	Filing Dt:	10/11/1994
Title:	HEADSET

Patent #:	D363487	Issue Dt:	10/24/1995	Application #:	29029800	Filing Dt:	10/17/1994
Title:	HEADSET EAR PIECE

Patent #:	D377174	Issue Dt:	01/07/1997	Application #:	29039235	Filing Dt:	05/25/1995
Title:	AIRCRAFT HEADSET

Patent #:	D379185	Issue Dt:	05/13/1997	Application #:	29047386	Filing Dt:	12/01/1995
Title:	MICROPHONE

Patent #:	D386764	Issue Dt:	11/25/1997	Application #:	29053220	Filing Dt:	04/17/1996
Title:	MICROPHONE

Patent #:	D401241	Issue Dt:	11/17/1998	Application #:	29057081	Filing Dt:	07/16/1996
Title:	SPEAKER ENCLOSURE

Patent #:	D389153	Issue Dt:	01/13/1998	Application #:	29064064	Filing Dt:	12/20/1996
Title:	MICROPHONE ATTACHABLE TO COMPUTER MONITOR

Patent #:	D395893	Issue Dt:	07/07/1998	Application #:	29071912	Filing Dt:	05/30/1997
Title:	MICROPHONE

Patent #:	D395894	Issue Dt:	07/07/1998	Application #:	29071913	Filing Dt:	05/30/1997
Title:	MICROPHONE

Patent #:	D444143	Issue Dt:	06/26/2001	Application #:	29112090	Filing Dt:	10/08/1999
Title:	MICROPHONE

Patent #:	D443870	Issue Dt:	06/19/2001	Application #:	29112204	Filing Dt:	10/12/1999
Title:	HEADSET

Patent #:	D449038	Issue Dt:	10/09/2001	Application #:	29132165	Filing Dt:	11/03/2000
Title:	Headset

Patent #:	D448751	Issue Dt:	10/02/2001	Application #:	29132207	Filing Dt:	11/03/2000
Title:	Earphone Headset

Assignor

Exec Dt:

12/17/2004

Assignee

12000 PORTLAND AVENUE SOUTH

BURNSVILLE, MINNESOTA 55337

Correspondence name and address
	MARY H. GLEASON
	200 SOUTH SIXTH STREET
	SUITE 4000
	MINNEAPOLIS, MN 55402

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