Woongjin Chemical Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 6128
 
  
 
D03D WOVEN FABRICS; METHODS OF WEAVING; LOOMS330
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 2123
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 2203
 
  
 
B28B SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER 127
 
  
 
B29K INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS 130
 
  
 
B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES 125
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS128

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9839879 Forward osmosis membrane for seawater desalination and method for preparing the sameDec 24, 14Dec 12, 17[B29C, B29K, B29L, B01D]
9248410 Forward osmosis membrane for seawater desalination and method for preparing the sameFeb 09, 11Feb 02, 16[C02F, B01D]
9170355 Reflective polarizer having a dispersed polymerFeb 07, 12Oct 27, 15[G02B, G02F]
9089820 Selective membrane having a high fouling resistanceDec 19, 11Jul 28, 15[B01D]
8986832 Optical-modulation objectJan 26, 10Mar 24, 15[D01D, D03D, G02B, D02G, B32B]
8820540 Method for preparing a filtration membrane and filtration membrane prepared by said methodJan 28, 11Sep 02, 14[B29C, B28B, B01D]
8353326 Three-dimensional fabric with three-layered structureMay 14, 10Jan 15, 13[D03D, E06B]
7913857 Selective membrane having a high fouling resistanceFeb 06, 07Mar 29, 11[B01D]
7694696 3D fabric and preparing thereofApr 11, 08Apr 13, 10[D03D]
7537697 Selective membrane having a high fouling resistanceFeb 01, 06May 26, 09[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0223,007 TUBULAR MOLDED BODY CAPABLE OF FULL-WRAPPING MEMBRANE MODULE AND INDUSTRIAL FILTER ASSEMBLY USING THE SAMEAbandonedSep 12, 11Sep 06, 12[B65H, B01D, B32B]
2011/0157,513 LIQUID CRYSTAL DISPLAY DEVICEAbandonedFeb 08, 10Jun 30, 11[G02B, G02F]
2011/0014,838 LUMINANCE-ENHANCED FILM AND METHOD FOR FABRICATING THE SAMEAbandonedJan 27, 10Jan 20, 11[D03D, B32B]
2010/0317,248 FABRIC INCLUDING LOW-MELTING FIBERAbandonedMay 28, 10Dec 16, 10[D03D]
2010/0218,841 3-D FABRIC AND PREPARING THEREOFAbandonedFeb 12, 10Sep 02, 10[D03D, E06B]
2010/0205,926 SPINNERET FOR PREPARING ISLAND-IN-THE-SEA YARNSAbandonedFeb 08, 10Aug 19, 10[B65H, D02G]
2010/0195,233 LUMINANCE-ENHANCED FILMAbandonedJan 26, 10Aug 05, 10[G02B, B32B]
2010/0195,234 LUMINANCE-ENHANCED FILMAbandonedJan 26, 10Aug 05, 10[G02B]
2010/0151,756 FABRIC FOR SCREEN INCLUDING DOPE DYED FIBERAbandonedDec 10, 09Jun 17, 10[D03D]
2010/0116,731 Reverse Osmosis Water Purifier Having Simple Filter ConfigurationAbandonedNov 06, 09May 13, 10[C02F, B01D]
7479300 Composite polyamide reverse osmosis membrane and method of producing the sameExpiredMar 30, 05Jan 20, 09[B29C, B01D]
2007/0227,966 Composite polyamide reverse osmosis membrane showing high boron rejection and method of producing the sameAbandonedMar 31, 06Oct 04, 07[B29C, B01D]

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