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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:	010095/0214			Pages:	56
		Recorded:	07/16/1999
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 41

Patent #:	4273654	Issue Dt:	06/16/1981	Application #:	06161289	Filing Dt:	06/20/1980
Title:	SEPARATION DEVICE

Patent #:	4450930	Issue Dt:	05/29/1984	Application #:	06414659	Filing Dt:	09/03/1982
Title:	MICROPHONE WITH STEPPED RESPONSE

Patent #:	4407517	Issue Dt:	10/04/1983	Application #:	06446960	Filing Dt:	12/06/1982
Title:	PROTECTIVE BOOT FOR SOLENOID

Patent #:	4592087	Issue Dt:	05/27/1986	Application #:	06559386	Filing Dt:	12/08/1983
Title:	CLASS D HEARING AID AMPLIFIER

Patent #:	4689819	Issue Dt:	08/25/1987	Application #:	06839876	Filing Dt:	03/19/1986
Title:	CLASS D. HEARING AID AMPLIFIER

Patent #:	4730283	Issue Dt:	03/08/1988	Application #:	06907498	Filing Dt:	09/15/1986
Title:	ACOUSTIC TRANSDUCER WITH IMPROVED ELECTRODE SPACING

Patent #:	4807612	Issue Dt:	02/28/1989	Application #:	07118455	Filing Dt:	11/09/1987
Title:	PASSIVE EAR PROTECTOR

Patent #:	4815560	Issue Dt:	03/28/1989	Application #:	07128736	Filing Dt:	12/04/1987
Title:	MICROPHONE WITH FREQUENCY PRE-EMPHASIS

Patent #:	4837833	Issue Dt:	06/06/1989	Application #:	07146483	Filing Dt:	01/21/1988
Title:	MICROPHONE WITH FREQUENCY PRE-EMPHASIS CHANNEL PLATE

Patent #:	4922873	Issue Dt:	05/08/1990	Application #:	07238579	Filing Dt:	08/31/1988
Title:	ELECTROMECHANICAL RUN/STOP ACTUATOR FOR DIESEL ENGINE

Patent #:	4867267	Issue Dt:	09/19/1989	Application #:	07292882	Filing Dt:	01/03/1989
Title:	HEARING AID TRANSDUCER

Patent #:	4956868	Issue Dt:	09/11/1990	Application #:	07426999	Filing Dt:	10/26/1989
Title:	MAGNETICALLY SHIELDED ELECTROMAGNETIC ACOUSTIC TRANSDUCER

Patent #:	RE33718	Issue Dt:	10/15/1991	Application #:	07482265	Filing Dt:	02/16/1990
Title:	ACOUSTIC TRANSDUCER WITH IMPROVED ELECTRODE SPACING

Patent #:	5068901	Issue Dt:	11/26/1991	Application #:	07517569	Filing Dt:	05/01/1990
Title:	DUAL OUTLET PASSAGE HEARING AID TRANSDUCER

Patent #:	5083095	Issue Dt:	01/21/1992	Application #:	07570820	Filing Dt:	08/22/1990
Title:	PLURAL SOURCE FOLLOWER AMPLIFIER

Patent #:	5193116	Issue Dt:	03/09/1993	Application #:	07759480	Filing Dt:	09/13/1991
Title:	HEARING AID OUTPUT TRANSDUCER WITH SELF CONTAINED AMPLIFIER

Patent #:	5335286	Issue Dt:	08/02/1994	Application #:	07836606	Filing Dt:	02/18/1992
Title:	ELECTRET ASSEMBLY

Patent #:	5250926	Issue Dt:	10/05/1993	Application #:	07875425	Filing Dt:	04/29/1992
Title:	POTENTIOMETER WITH IMPROVED SEAL

Patent #:	5222050	Issue Dt:	06/22/1993	Application #:	07900662	Filing Dt:	06/19/1992
Title:	WATER-RESISTANT TRANSDUCER HOUSING WITH HYDROPHOBIC VENT

Patent #:	5408534	Issue Dt:	04/18/1995	Application #:	07930006	Filing Dt:	08/13/1992
Title:	ELECTRET MICROPHONE ASSEMBLY, AND METHOD OF MANUFACTURER

Patent #:	5319717	Issue Dt:	06/07/1994	Application #:	07959710	Filing Dt:	10/13/1992
Title:	HEARING AID MICROPHONE WITH MODIFIED HIGH-FREQUENCY RESPONSE

Patent #:	5337011	Issue Dt:	08/09/1994	Application #:	07989714	Filing Dt:	12/14/1992
Title:	PRE-AMPLIFIER

Patent #:	5559892	Issue Dt:	09/24/1996	Application #:	08218603	Filing Dt:	03/28/1994
Title:	IMPEDENCE BUFFERING MOS CIRCUIT WITH DYNAMICALLY REDUCED THRESHOLD VOLTAGE, AS FOR USE IN AN OUTPUT BUFFER OF A HEARING AID AMPLIFIER

Patent #:	5490220	Issue Dt:	02/06/1996	Application #:	08238965	Filing Dt:	05/05/1994
Title:	SOLID STATE CONDENSER AND MICROPHONE DEVICES

Patent #:	5446413	Issue Dt:	08/29/1995	Application #:	08247136	Filing Dt:	05/20/1994
Title:	IMPEDANCE CIRCUIT FOR A MINIATURE HEARING AID

Patent #:	5548658	Issue Dt:	08/20/1996	Application #:	08254583	Filing Dt:	06/06/1994
Title:	ACOUSTIC TRANSDUCER

Patent #:	5592356	Issue Dt:	01/07/1997	Application #:	08312773	Filing Dt:	09/27/1994
Title:	DUAL COIL ACTUATOR WITH TIMING CIRCUIT

Patent #:	5692060	Issue Dt:	11/25/1997	Application #:	08431763	Filing Dt:	05/01/1995
Title:	UNIDIRECTIONAL MICROPHONE

Patent #:	5588064	Issue Dt:	12/24/1996	Application #:	08586212	Filing Dt:	01/16/1996
Title:	HEARING AID BATTERY COVER SWITCH

Patent #:	5861779	Issue Dt:	01/19/1999	Application #:	08742287	Filing Dt:	11/04/1996
Title:	IMPEDANCE CIRCUIT FOR A MINIATURE HEARING AID

Patent #:	5740261	Issue Dt:	04/14/1998	Application #:	08752584	Filing Dt:	11/21/1996
Title:	MINIATURE SILICON CONDENSER MICROPHONE

Patent #:	5870482	Issue Dt:	02/09/1999	Application #:	08805983	Filing Dt:	02/25/1997
Title:	MINIATURE SILICON CONDENSER MICROPHONE

Patent #:	6041131	Issue Dt:	03/21/2000	Application #:	08890075	Filing Dt:	07/09/1997
Title:	SHOCK RESISTANT ELECTROACOUSTIC TRANSDUCER

Patent #:	6654477	Issue Dt:	11/25/2003	Application #:	08943669	Filing Dt:	10/15/1997
Title:	RECEIVER AND METHOD OF CONSTRUCTION

Patent #:	5960093	Issue Dt:	09/28/1999	Application #:	09050508	Filing Dt:	03/30/1998
Title:	MINIATURE TRANSDUCER

Patent #:	6654468	Issue Dt:	11/25/2003	Application #:	09193012	Filing Dt:	11/16/1998
Title:	APPARATUS AND METHOD FOR MATCHING THE RESPONSE OF MICROPHONES IN MAGNITUDE AND PHASE

Patent #:	D360948	Issue Dt:	08/01/1995	Application #:	29012486	Filing Dt:	09/01/1993
Title:	HEARING AID RECEIVER

Patent #:	D360691	Issue Dt:	07/25/1995	Application #:	29012487	Filing Dt:	09/01/1993
Title:	HEARING AID RECEIVER

Patent #:	D360949	Issue Dt:	08/01/1995	Application #:	29012488	Filing Dt:	09/01/1993
Title:	HEARING AID RECEIVER

Patent #:	D378513	Issue Dt:	03/18/1997	Application #:	29047403	Filing Dt:	12/04/1995
Title:	SOLENOID ASSEMBLY

Patent #:	D414493	Issue Dt:	09/28/1999	Application #:	29083343	Filing Dt:	02/06/1998
Title:	MICROPHONE HOUSING

Assignors

KNOWLES ELECTRONICS, INC.

Exec Dt:

06/30/1999

KNOWLES INTERMEDIATE HOLDINGS,INC.

Exec Dt:

06/30/1999

EMKAY INNOVATIVE PRODUCTS, INC.

Exec Dt:

06/30/1999

KNOWLES MANUFACTURING LTD.

Exec Dt:

06/30/1999

SYNCHRO-START PRODUCTS, INC.

Exec Dt:

06/30/1999

Assignee

CHASE MANHATTAN BANK, THE, AS ADMINISTRATIVE AGENT

270 PARK AVENUE

NEW YORK, NEW YORK 10017

Correspondence name and address
	CRAVATH, SWAINE & MOORE
	ANNE H. LEWALLEN
	WORLDWIDE PLAZA
	825 EIGHTH AVE.
	NEW YORK, NY 10019

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