ROTRING INTERNATIONAL GMBH & CO. KG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B43K IMPLEMENTS FOR WRITING OR DRAWING 124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6062758 Ink writing implementMay 18, 98May 16, 00[B40K]
D414203 Fountain penJul 30, 98Sep 21, 99[1906]
5938362 Writing implement for inkMar 02, 98Aug 17, 99[B43K]
D412183 Ball point penJul 30, 98Jul 20, 99[1906]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5734400 Method and apparatus for refilling ink jet unit printer cartridgesExpiredOct 31, 95Mar 31, 98[B41J, B67D]
5443322 Flow control for writing or drawing instrumentExpiredApr 04, 94Aug 22, 95[B43K]
5427463 Ink writing implementExpiredDec 17, 93Jun 27, 95[B43K]
D357276 Ink stylus penExpiredApr 04, 94Apr 11, 95[]
5392520 Vector brushExpiredMar 09, 93Feb 28, 95[B43L, B05B]

Top Inventors for This Owner

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