GUARDIAN INDUSTRIES CORP.
Patent Owner
Stats
- 34 US PATENTS IN FORCE
- 1 US APPLICATIONS PENDING
- Feb 10, 2015 most recent publication
Details
- 34 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 2,692 Total Citation Count
- Feb 13, 1981 Earliest Filing
- 41 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Top Patents (by citation)
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Recent Publications
Publication #
Title
Filing Date
Pub Date
Intl Class
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
6567143 NW twisted nematic LCD with negative and tilted retarders on each side of liquid crystal cell to improve vertical contrast ratiosApr 28, 98May 20, 03[G02F]
6292242 Normally white twisted nematic LCD with positive uniaxial and negative biaxial retardersDec 18, 96Sep 18, 01[G02F]
6226065 Liquid crystal display having high contrast viewing zone centered in positive or negative vertical regionJun 16, 99May 01, 01[G02F]
6124606 Method of making a large area imager with improved signal-to-noise ratioJan 14, 98Sep 26, 00[H01L]
6028651 Normally white twisted nematic liquid crystal display including retardation films for improving viewing characteristicsJan 13, 99Feb 22, 00[G02F]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
2008/0073,203 Method of making first surface mirror with oxide graded reflecting layer structureAbandonedSep 19, 06Mar 27, 08[C23C, B05D]
5128783 Diffusing/collimating lens array for a liquid crystal displayExpiredJan 31, 90Jul 07, 92[G02F]
5061040 Liquid crystal displays operated by amorphous silicon alloy diodesExpiredSep 28, 89Oct 29, 91[G02F]
4929569 Method of fabricating amorphous silican diode addressed liquid crystal displayExpiredSep 22, 88May 29, 90[H01L]
4907088 Contact-type imager for use as the front end of copier apparatusExpiredJul 21, 88Mar 06, 90[H04N]
4868616 Amorphous electronic matrix array for liquid crystal displayExpiredDec 11, 86Sep 19, 89[H01L]
4868664 Contact type image replication employing a light piping faceplateExpiredJun 20, 88Sep 19, 89[H04N]
4785191 Interconnected array of photosensors for simultaneously sensing light intensities at each of a number of locationsExpiredApr 17, 87Nov 15, 88[H01L]
4768096 Contact-type portable digitizing wand for scanning image-bearing surfacesExpiredOct 22, 87Aug 30, 88[H04N]
Top Inventors for This Owner
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