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Charles G. Kalt
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Williamstown, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Flexible video displays and their manufacture
Patent number
7,705,826
Issue date
Apr 27, 2010
New Visual Media Group, L.L.C.
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Passively illuminated, eye-catching display for traffic signs
Patent number
6,897,786
Issue date
May 24, 2005
Display Science, Inc.
Charles G. Kalt
G08 - SIGNALLING
Information
Patent Grant
Variable configuration video displays and their manufacture
Patent number
6,771,237
Issue date
Aug 3, 2004
Display Science, Inc.
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Method of manufacturing a light modulating capacitor array and product
Patent number
6,692,646
Issue date
Feb 17, 2004
Display Science, Inc.
Charles G Kalt
G02 - OPTICS
Information
Patent Grant
Electrostatic video display drive circuitry and displays incorporat...
Patent number
6,317,108
Issue date
Nov 13, 2001
Display Science, Inc.
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electrostatic video display drive circuitry and displays incorporat...
Patent number
6,057,814
Issue date
May 2, 2000
Display Science, Inc.
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Lighting-independent color video display
Patent number
5,638,084
Issue date
Jun 10, 1997
Dielectric Systems International, Inc.
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electromagnetic-wave modulating, movable electrode, capacitor elements
Patent number
5,519,565
Issue date
May 21, 1996
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Full color light modulating capacitor
Patent number
5,231,559
Issue date
Jul 27, 1993
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electrostatic device and terminal therefor
Patent number
4,747,670
Issue date
May 31, 1988
Display Science, Inc.
John L. Devio
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electrostatic display device with improved fixed electrode
Patent number
4,695,837
Issue date
Sep 22, 1987
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Capacitively coupled electrostatic device
Patent number
4,488,784
Issue date
Dec 18, 1984
Andrew S. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electromechanical reflective display device
Patent number
4,468,663
Issue date
Aug 28, 1984
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Reflective display and method of making same
Patent number
4,336,536
Issue date
Jun 22, 1982
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Method for making rolling electrode for electrostatic device
Patent number
4,266,339
Issue date
May 12, 1981
Dielectric Systems International, Inc.
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electrostatic display device
Patent number
4,208,103
Issue date
Jun 17, 1980
Dielectric Systems International
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electrostatic device for gating electromagnetic radiation
Patent number
4,094,590
Issue date
Jun 13, 1978
Dielectric Systems International, Inc.
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electro-static device with rolling electrode
Patent number
3,989,357
Issue date
Nov 2, 1976
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
Information
Patent Application
Flexible video displays and their manufacture
Publication number
20070052636
Publication date
Mar 8, 2007
Charles G. Kalt
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Method of manufacturing a light modulating capacitor array and product
Publication number
20020036059
Publication date
Mar 28, 2002
Charles G. Kalt
G02 - OPTICS