PRACTICAL TECHNOLOGY, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C30B SINGLE-CRYSTAL GROWTH 155

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8936683 Synthetic opal and photonic crystalFeb 02, 05Jan 20, 15[C30B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8003280 System and method for holographic lithographic production of a photonic crystalExpiredOct 17, 07Aug 23, 11[G03H]
7794538 Self-assembly method, opal, photonic band gap, and light sourceExpiredFeb 01, 06Sep 14, 10[C30B, B32B]
7767903 System and method for thermal to electric conversionExpiredNov 09, 04Aug 03, 10[H01L]
2010/0091,500 MULTI-FUNCTION LIGHT AND AIR FILTRATION UNITAbandonedSep 03, 09Apr 15, 10[F21V]
2006/0130,446 Multi-function light and air filtration unitAbandonedOct 26, 05Jun 22, 06[B01D]
2005/0109,386 System and method for enhanced thermophotovoltaic generationAbandonedNov 09, 04May 26, 05[H01L]
2005/0057,831 Directional heat exchangerAbandonedSep 08, 04Mar 17, 05[G02B, H01S]
4534593 Vehicle seat lumbar support insert and method of utilizing the sameExpiredMay 06, 83Aug 13, 85[A47C]

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