Microsharp Corporation Limited

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204
 
  
 
G03F PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR 1103

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5695895 Randomised mask for a diffusing screenApr 24, 96Dec 09, 97[G03F]
5442482 Microlens screens, photopolymerisable materials and artifacts utilising the sameDec 18, 92Aug 15, 95[G02B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8194324 Fresnel lensesExpiredJun 23, 08Jun 05, 12[F24J, G02B]
2011/0048,411 PRISMATIC LENSAbandonedFeb 23, 09Mar 03, 11[F24J, G02B, B32B]
2010/0195,204 OPTICAL FILMAbandonedJun 27, 08Aug 05, 10[G02B, B32B]
7744263 Structured optical filmExpiredDec 16, 05Jun 29, 10[F21V]
7632880 High refractive index polymerizable compositionsExpiredFeb 20, 04Dec 15, 09[C08J, B05D, C08F, C08K]
2007/0296,920 Rear Projection Screen and Associated Display SystemAbandonedJun 07, 05Dec 27, 07[G03B]
2007/0091,431 Rear projection screen, and rear projection system using the screenAbandonedNov 05, 04Apr 26, 07[G03B]
2004/0090,573 Screen with asymmetric light diffusing characteristicAbandonedJun 16, 03May 13, 04[G02F]
6724535 Stepped surface diffuserExpiredOct 14, 01Apr 20, 04[G02B, G02F]
6433846 Apparatus for maintaining and converting a localized polarization shift into a localized intensity variation in a LCD display assemblyExpiredDec 13, 99Aug 13, 02[G02F]
5897980 Method of imparting contrast enhancement properties to diffusing, depixelating or projection screensExpiredJul 11, 96Apr 27, 99[G03F]
5719588 Viewing deviceExpiredJun 28, 96Feb 17, 98[G09G]

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