RESEARCH INSTITUTE FOR PRODUCTION DEVELOPMENT

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Patent Activity in the Last 10 Years

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Intl Class Technology Matters Rank in Class
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5290911 Process for preparing polyarylene thioether from thiophenolAug 07, 92Mar 01, 94[C08G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6018051 Processing for washing-out degradation-resistant organic chlorine compoundExpiredSep 08, 98Jan 25, 00[C07D]
5733539 Bait for fishes and shellfishesExpiredJul 13, 97Mar 31, 98[A01N, A23K]
5648499 Method of decomposing halogenated aromatic compoundsExpiredMar 23, 95Jul 15, 97[C07D]
5476987 Method of removing halogenated aromatic compound from hydrocarbon oilExpiredApr 29, 94Dec 19, 95[C07C, C10G]
5153305 Catalytic process for preparing polyarylene thioetherExpiredJul 11, 90Oct 06, 92[C08G]
4879301 Antiallergic and antiinflammatory benzothiazolinone derivativesExpiredApr 26, 88Nov 07, 89[A61K, C07D]

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