AMERICAN SCIENCE AND TECHNOLOGY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
B01D SEPARATION 1133
 
 
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
 
 
C07D HETEROCYCLIC COMPOUNDS 1161
 
 
 
C08B POLYSACCHARIDES; DERIVATIVES THEREOF 130
 
 
 
C08H DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS 114

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9365525 System and method for extraction of chemicals from lignocellulosic materialsFeb 11, 13Jun 14, 16[C08H, C07D, C07C, C08B, B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0034,109 Process for Producing Lignin from TobaccoAbandonedJul 23, 14Feb 05, 15[A24B, C08H, C08L]
8440905 Copper complex dye sensitized solar cellExpiredSep 25, 09May 14, 13[H01L]

Top Inventors for This Owner

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