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Patent Assignment Details
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Reel/Frame:008503/0793   Pages: 6
Recorded: 05/19/1997
Conveyance: SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 17
1
Patent #:
Issue Dt:
05/31/1983
Application #:
06121071
Filing Dt:
02/13/1980
Title:
LIQUID CRYSTAL DISPLAY WITH IMPROVED ANGLE OF VIEW AND RESPONSE TIMES
2
Patent #:
Issue Dt:
03/13/1984
Application #:
06235006
Filing Dt:
02/17/1981
Title:
LIGHT MODULATOR, EMODULATOR AND METHOD OF COMMUNICTION EMPLOYING THE SAME
3
Patent #:
Issue Dt:
09/10/1985
Application #:
06409526
Filing Dt:
08/19/1982
Title:
METHOD AND APPARATUS FOR CONVERTING PHASE-MODULATED LIGHT TO AMPLITUDE-MODULATED LIGHT AND COMMUNICATION METHOD AND APPARATUS EMPLOYING THE SAME
4
Patent #:
Issue Dt:
10/13/1987
Application #:
06710846
Filing Dt:
03/12/1985
Title:
LIGHT MODULATOR, DEMODULATOR AND METHOD OF COMMUNICATION EMPLOYING THE SAME
5
Patent #:
Issue Dt:
12/24/1991
Application #:
07447297
Filing Dt:
12/07/1989
Title:
LIQUID CRYSTAL LENS ASSEMBLY FOR EYE PROTECTION
6
Patent #:
Issue Dt:
05/04/1993
Application #:
07653661
Filing Dt:
02/08/1991
Title:
EYE PROTECTION DEVICE FOR WELDING HELMETS
7
Patent #:
Issue Dt:
10/12/1993
Application #:
07674850
Filing Dt:
03/25/1991
Title:
DETECTOR SYSTEM FOR DETECTING THE OCCURRRENCE OF WELDING USING DETECTOR FEEDBACK
8
Patent #:
Issue Dt:
09/28/1993
Application #:
07814372
Filing Dt:
12/26/1991
Title:
A DETECTOR SYSTEM FOR DETECTING THE OCCURRENCE OF WELDING
9
Patent #:
Issue Dt:
09/13/1994
Application #:
07943994
Filing Dt:
09/11/1992
Title:
HIGH SPEED, LOW POWER DRIVING CIRCUIT FOR LIQUID CRYSTAL SHUTTER
10
Patent #:
Issue Dt:
12/27/1994
Application #:
08013966
Filing Dt:
02/05/1993
Title:
ELECTRO-OPTIC LIGHT SHUTTER AND FRAME ASSEMBLY WITH INTEGRATED SWITCHING MECHANISM
11
Patent #:
Issue Dt:
05/07/1996
Application #:
08089265
Filing Dt:
07/09/1993
Title:
EYE PROTECTION DEVICE FOR WELDING HELMETS WHICH REDUCES OBLIQUELY INCIDENT LIGHT
12
Patent #:
Issue Dt:
05/21/1996
Application #:
08105734
Filing Dt:
08/11/1993
Title:
EYE PROTECTION DEVICE FOR WELDING HELMETS AND THE LIKE WITH HOT MIRROR AND INDIUM TIN OXIDE LAYER
13
Patent #:
Issue Dt:
05/23/2000
Application #:
08616264
Filing Dt:
03/15/1996
Title:
WELDING LENS WITH INTEGRATED DISPLAY AND METHOD
14
Patent #:
Issue Dt:
09/28/1999
Application #:
08623972
Filing Dt:
03/29/1996
Title:
WELDING LENS WITH INTEGRATED DISPLAY, SWITCHING MECHANISM AND METHOD
15
Patent #:
Issue Dt:
05/12/1998
Application #:
08707269
Filing Dt:
09/04/1996
Title:
LIQUID CRYSTAL LENS DRIVER ELECTRONICS FOR EYE PROTECTION, HIGH SPEED SHUTTERING WITH CONSISTENT PERFORMANCE
16
Patent #:
Issue Dt:
08/09/1994
Application #:
29000226
Filing Dt:
10/06/1992
Title:
WELDING LENS ASSEMBLY
17
Patent #:
Issue Dt:
12/20/1994
Application #:
29008943
Filing Dt:
06/01/1993
Title:
WELDING LENS ASSEMBLY
Assignor
1
Exec Dt:
10/23/1996
Assignee
1
500 WEST MONROE
CHICAGO, ILLINOIS 60661
Correspondence name and address
JENKENS & GILCHRIST, P.C.
P. WESTON MUSSELMAN, JR.
1445 ROSS AVENUE, STE. 3200
DALLAS, TX 75202-2799

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