DONG-A PENCIL CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
1906 MATERIALS AND INSTRUMENTS FOR WRITING BY HAND, FOR DRAWING, FOR PAINTING, FOR SCULPTURE, FOR ENGRAVING AND FOR OTHER ARTISTIC TECHNIQUES1118
 
  
 
B43K IMPLEMENTS FOR WRITING OR DRAWING 520
 
  
 
B41M PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING 247
 
  
 
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
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR293
 
  
 
A45D HAIRDRESSING OR SHAVING EQUIPMENT; MANICURING OR OTHER COSMETIC TREATMENT 135
 
  
 
B05C APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 144
 
  
 
E06B FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES 144

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0001,467 HEATING ERASER FOR REMOVING THERMALLY CHANGEABLE INKJun 23, 16Jan 05, 17[B43K]
2016/0376,457 THERMOCHROMIC MICRO PARTICLES AND THERMOCHROMIC INK COMPOSITION, WRITING APPARATUS AND SMART WINDOW USING THE SAMEJun 17, 16Dec 29, 16[C09D, E06B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9909025 Thermochromic micro particles and thermochromic ink composition, writing apparatus and smart window using the sameJun 17, 16Mar 06, 18[B41M, C09K, B43K, C09D, E06B]
9879147 Thermochromic micro particles and thermochromic ink composition, writing apparatus and smart window using the sameJun 22, 16Jan 30, 18[B41M, C09K, B43K, C09D, E06B]
D797853 Ballpoint penNov 20, 15Sep 19, 17[1906]
D791874 Ballpoint penNov 20, 15Jul 11, 17[1906]
D787595 Ballpoint penJan 28, 16May 23, 17[1906]
D695828 Highlighter penOct 16, 12Dec 17, 13[1906]
D667055 Highlighter penApr 29, 11Sep 11, 12[1906]
D659758 Highlighter penFeb 28, 11May 15, 12[1906]
D646715 Ballpoint penNov 16, 10Oct 11, 11[1906]
D646718 Ballpoint penNov 16, 10Oct 11, 11[1906]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0058,890 Tip for Ball Point PenAbandonedAug 16, 10Mar 10, 11[B43K]
2009/0196,676 TIP FOR WRITING INSTRUMENTAbandonedNov 26, 08Aug 06, 09[B43K]
2008/0199,243 BALLPOINT PEN TIPAbandonedMay 24, 07Aug 21, 08[B43K]
6673138 Multi-color crayon or oil pastel and method of producing the sameExpiredMar 13, 02Jan 06, 04[C09D]
2003/0230,642 Sprayer with removable inkAbandonedMar 31, 03Dec 18, 03[B05B]
6382860 Safety knock-type writing utensilExpiredJul 10, 00May 07, 02[B43K]
2001/0009,934 Tacky ink and pen using sameAbandonedJan 17, 01Jul 26, 01[C09D, C08K]

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