DONG-A TEACHING MATERIALS CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 2114
 
  
 
C09D COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 290
 
  
 
A45D HAIRDRESSING OR SHAVING EQUIPMENT; MANICURING OR OTHER COSMETIC TREATMENT 135
 
  
 
A63H TOYS, e.g. TOPS, DOLLS, HOOPS, BUILDING BLOCKS131
 
  
 
B43K IMPLEMENTS FOR WRITING OR DRAWING 124
 
  
 
C11D DETERGENT COMPOSITIONS 164
 
  
 
C30B SINGLE-CRYSTAL GROWTH 155
 
  
 
D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS128
 
  
 
D03D WOVEN FABRICS; METHODS OF WEAVING; LOOMS132
 
  
 
1906 MATERIALS AND INSTRUMENTS FOR WRITING BY HAND, FOR DRAWING, FOR PAINTING, FOR SCULPTURE, FOR ENGRAVING AND FOR OTHER ARTISTIC TECHNIQUES128

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D813311 HighlighterJun 16, 16Mar 20, 18[1906]
9228162 Transparency solid cleaning agentNov 01, 13Jan 05, 16[C11D]
9109298 Crystal growing ornamentFeb 14, 12Aug 18, 15[A63H, C30B, B44C]
9074068 Bar type clay member for craftJan 04, 11Jul 07, 15[D03D, C08L, D02G, C08K]
9068079 Bar type clay for craftJan 05, 11Jun 30, 15[C08L, B44C]
8500353 Draw-out type solid markerJan 18, 11Aug 06, 13[B43K]
8425675 Recrystallization type of ink compositionJun 09, 10Apr 23, 13[C09D]
7682437 Transparent solid markerMay 21, 09Mar 23, 10[C09D]
6612765 Core guide assembly for stationery articleNov 13, 01Sep 02, 03[A45D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2003/0026,939 Core guide assembly for stationery articleAbandonedNov 13, 01Feb 06, 03[B32B]

Top Inventors for This Owner

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