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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:	006712/0020			Pages:	5
		Recorded:	08/13/1993
Conveyance:	RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).

Total properties: 14

Patent #:	4375081	Issue Dt:	02/22/1983	Application #:	06213583	Filing Dt:	12/05/1980
Title:	MULTISTAGE DIGITAL FILTERING UTILIZING SEVERAL CRITERIA

Patent #:	D283026	Issue Dt:	03/18/1986	Application #:	06519141	Filing Dt:	08/01/1983
Title:	COMPUTER TERMINAL

Patent #:	4534060	Issue Dt:	08/06/1985	Application #:	06521729	Filing Dt:	08/09/1983
Title:	METHOD AND APPARATUS FOR REMOVING NOISE AT THE ENDS OF A STROKE

Patent #:	4570033	Issue Dt:	02/11/1986	Application #:	06544615	Filing Dt:	10/24/1983
Title:	POLYPHASE DIGITIZER

Patent #:	4552991	Issue Dt:	11/12/1985	Application #:	06548317	Filing Dt:	11/03/1983
Title:	ABSOLUTE POSITION COORDINATE DETERMINING DEVICE EMPLOYING A SINGLE PHASE DIFFERENCE MEASUREMENT TO DETERMINE CURSOR POSITION

Patent #:	4577057	Issue Dt:	03/18/1986	Application #:	06585711	Filing Dt:	03/02/1984
Title:	DIGITIZING TABLET SYSTEM HAVING STYLUS TILT CORRECTION

Patent #:	4582955	Issue Dt:	04/15/1986	Application #:	06592879	Filing Dt:	03/23/1984
Title:	DIGITIZING TABLET SYSTEM INCLUDING A TABLET HAVING A GRID STRUCTURE MADE OF TWO ORTHOGONAL SETS OF PARALLEL UNIFORMLY SIZED AND SPACED U SHAPED LOOPS OF CONDUCTIVE MATERIAL

Patent #:	4608658	Issue Dt:	08/26/1986	Application #:	06599989	Filing Dt:	04/13/1984
Title:	METHOD AND APPARATUS FOR REMOVING NOISE AT THE ENDS OF A STROKE CAUSED BY RETRACING

Patent #:	4566191	Issue Dt:	01/28/1986	Application #:	06601566	Filing Dt:	04/18/1984
Title:	X-Y POSITION INDICATOR FOR A DISPLAY SYSTEM

Patent #:	4562304	Issue Dt:	12/31/1985	Application #:	06613099	Filing Dt:	05/23/1984
Title:	APPARATUS AND METHOD FOR EMULATING COMPUTER KEYBOARD INPUT WITH A HANDPRINT TERMINAL

Patent #:	4638119	Issue Dt:	01/20/1987	Application #:	06672310	Filing Dt:	11/16/1984
Title:	POSITION INDICATING APPARATUS FOR USE IN A DIGITIZING TABLET SYSTEM

Patent #:	4644102	Issue Dt:	02/17/1987	Application #:	06717534	Filing Dt:	03/29/1985
Title:	DIGITIZING TABLET SYSTEM

Patent #:	4694124	Issue Dt:	09/15/1987	Application #:	06790883	Filing Dt:	12/09/1985
Title:	DIGITIZING TABLET SYSTEM INCLUDING A TABLET HAVING A GRID STRUCTURE MADE OF TWO ORTHOGONAL SETS OF PARALLEL UNIFORMLY SIZED AND SPACED U SHAPED LOOPS OF CONDUCTIVE MATERIAL

Patent #:	4853715	Issue Dt:	08/01/1989	Application #:	07207862	Filing Dt:	06/17/1988
Title:	PLOTTER HEAD CONTROL DEVICE

Assignor

Exec Dt:

09/15/1989

Assignee

125 SOUTH BROAD STREET, PHIL, PA 19109

Correspondence name and address
	PATRICK J. MCENVOY
	PRENTICE HALL LEGAL
	1090 VERMONT AVE NW
	STE. 430
	WASHINGTON, DC 20005

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