Epworks Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 1133
 
  
 
B03D FLOTATION; DIFFERENTIAL SEDIMENTATION 114
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8821826 Method for regenerating silicon from silicon waste and silicon manufactured using the sameOct 08, 09Sep 02, 14[C01B, B03D, C02F, B01D]
7264995 Method for manufacturing wafer level chip scale package using redistribution substrateOct 07, 05Sep 04, 07[H01L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0225,501 THREE DIMENSIONAL SEMICONDUCTOR DEVICE, METHOD OF MANUFACTURING THE SAME AND ELECTRICAL CUTOFF METHOD FOR USING FUSE PATTERN OF THE SAMEAbandonedMay 11, 12Sep 06, 12[H01L]
2011/0272,729 WAFER LEVEL LED INTERPOSERAbandonedMay 02, 11Nov 10, 11[H01L]
2010/0193,903 THREE DIMENSIONAL SEMICONDUCTOR DEVICE, METHOD OF MANUFACTURING THE SAME AND ELECTRICAL CUTOFF METHOD FOR USING FUSE PATTERN OF THE SAMEAbandonedJul 30, 08Aug 05, 10[H01L]

Top Inventors for This Owner

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