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Patent Assignment Details
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Reel/Frame:006712/0020   Pages: 5
Recorded: 08/13/1993
Conveyance: RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Total properties: 14
1
Patent #:
Issue Dt:
02/22/1983
Application #:
06213583
Filing Dt:
12/05/1980
Title:
MULTISTAGE DIGITAL FILTERING UTILIZING SEVERAL CRITERIA
2
Patent #:
Issue Dt:
03/18/1986
Application #:
06519141
Filing Dt:
08/01/1983
Title:
COMPUTER TERMINAL
3
Patent #:
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
4
Patent #:
Issue Dt:
02/11/1986
Application #:
06544615
Filing Dt:
10/24/1983
Title:
POLYPHASE DIGITIZER
5
Patent #:
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
6
Patent #:
Issue Dt:
03/18/1986
Application #:
06585711
Filing Dt:
03/02/1984
Title:
DIGITIZING TABLET SYSTEM HAVING STYLUS TILT CORRECTION
7
Patent #:
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
8
Patent #:
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
9
Patent #:
Issue Dt:
01/28/1986
Application #:
06601566
Filing Dt:
04/18/1984
Title:
X-Y POSITION INDICATOR FOR A DISPLAY SYSTEM
10
Patent #:
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
11
Patent #:
Issue Dt:
01/20/1987
Application #:
06672310
Filing Dt:
11/16/1984
Title:
POSITION INDICATING APPARATUS FOR USE IN A DIGITIZING TABLET SYSTEM
12
Patent #:
Issue Dt:
02/17/1987
Application #:
06717534
Filing Dt:
03/29/1985
Title:
DIGITIZING TABLET SYSTEM
13
Patent #:
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
14
Patent #:
Issue Dt:
08/01/1989
Application #:
07207862
Filing Dt:
06/17/1988
Title:
PLOTTER HEAD CONTROL DEVICE
Assignor
1
Exec Dt:
09/15/1989
Assignee
1
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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