Japan Marine Machinery Development Association

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1124

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5324492 Method of reducing nitrogen oxide content in gasJul 22, 92Jun 28, 94[C01B, C08F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4448144 Method for opening, closing and rotating rigid marine sailExpiredJul 07, 81May 15, 84[B63H, G05B, B63B]
4443726 Brushes and method for the production thereofExpiredMay 10, 82Apr 17, 84[H02K]
4418632 Method for operating a rigid marine sailExpiredApr 28, 81Dec 06, 83[B63H]

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