Rhone-Poulenc Specialites Chimiques

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108

Top Patents (by citation)

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5308548 Preparing a dispersible, sol-forming cerium (IV) compositionJul 08, 92May 03, 94[B01J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5756317 Production of heteroplysaccharide biopolymers with xanthomonas in oil-in-water emulsionExpiredJan 16, 91May 26, 98[C12P]
5376305 Preparing storage stable aqueous colloidal dispersions of cerium (IV) valuesExpiredMay 20, 92Dec 27, 94[B01J]
5344588 Cerium (IV) compoundExpiredAug 21, 91Sep 06, 94[C01F, B01D]
5190625 Electrolytic production of rare earth metals/alloys thereofExpiredMay 04, 92Mar 02, 93[C25C]
5183928 Preparation of hydroquinone monocarboxylatesExpiredFeb 26, 88Feb 02, 93[C07C]
5145605 Sol-forming cerium materialExpiredSep 16, 91Sep 08, 92[B01J]
5080877 Novel cerium oxide particulatesExpiredJan 08, 90Jan 14, 92[C01F]
5066420 Production of silica colloidsExpiredAug 05, 87Nov 19, 91[C01B, B01J]
5017352 Novel cerium oxide particulatesExpiredDec 29, 89May 21, 91[C01F]
5010186 Acid/heat modified polysaccharide biopolymersExpiredSep 13, 89Apr 23, 91[C07G, C08B, E21B]
4999180 Neodymium hydroxynitrateExpiredJul 11, 86Mar 12, 91[C01G, C01F]
4981619 Process for preparing alpha-hydroxy acidsExpiredNov 28, 86Jan 01, 91[C07C]
4976939 Processing of rare earth oresExpiredMay 03, 90Dec 11, 90[C01F]
4977213 Moulding compositions comprised of semirigid, fatty acid copolyamides, elastomers and optionally conventional polyamidesExpiredJun 08, 87Dec 11, 90[C08L]
4963594 Heat/color stabilized polymers of vinyl chlorideExpiredJul 21, 89Oct 16, 90[C08K]
4940685 Ceric oxide particulates having a stable specific surface and a process for their preparationExpiredJul 03, 86Jul 10, 90[B01J]
4938983 Stable suspensions of solid particulates in aqueous mediaExpiredJun 10, 87Jul 03, 90[A23L]
4929460 Elastomeric silicone binding threads for cookable foodstuff itemsExpiredOct 03, 89May 29, 90[B65B]
4915174 Concentrated suspensions of water soluble polymersExpiredJan 17, 89Apr 10, 90[C09K, E21B]
4898819 Heteropolysaccharide solutions stabilized against viscosity loss over temperature and timeExpiredDec 05, 85Feb 06, 90[C12P]

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