RHONE-POULENC SURFACTANTS AND SPECIALTIES, L.P.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
  
 
C11D DETERGENT COMPOSITIONS 164

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6057463 N-acylaminoalkane sulfonate and amphoteric surfactant blends and methods for preparing the sameApr 30, 96May 02, 00[C07C]
5230824 Aqueous tertiary thiol ethoxylate cleaning compositionDec 18, 91Jul 27, 93[C11D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5837668 Acyloxyalkane sulfonate and amphoteric surfactant blend compositions and methods for preparing sameExpiredApr 30, 96Nov 17, 98[B01F, C11D]
5431832 Non-hydrogen evolving siloxane-based lubricant compositionExpiredJul 23, 93Jul 11, 95[C10M, B28B]
5114978 Anhydrous blends of p-chloro-m-xylenol in surfactant mixturesExpiredOct 15, 90May 19, 92[A61K]
5068277 Hydrolyzable silicone polymersExpiredMay 03, 89Nov 26, 91[C08K]
4994577 Quaternized siliconesExpiredSep 05, 89Feb 19, 91[C07F]
4943664 Surfactant products containing 1,3,4-butanetriolExpiredSep 22, 89Jul 24, 90[C07C]
4937277 Alkoxylated silicon polymersExpiredMay 16, 88Jun 26, 90[C08K]
4924006 N-pyrrolidonyl alkyl amino 1,3,4-butanetriol compoundsExpiredOct 02, 89May 08, 90[C07D]
4886609 Method for stimulation of oil and gas wellsExpiredOct 09, 87Dec 12, 89[E21B]
4873294 Mixture of cationic benzene carboxylate polymers from the reaction of haloacetyl terminated poly(ether-esters) with terminal quaternizing agentsExpiredJun 16, 88Oct 10, 89[C08G]
4867750 Alkoxylated polyestersExpiredDec 12, 88Sep 19, 89[C09K, C07C]
4830769 Propoxylated guerbet alcohols and esters thereofExpiredFeb 01, 88May 16, 89[C10M, C07C]
4824606 Alkoxylated polyestersExpiredApr 20, 88Apr 25, 89[C09K, C07C]
4813482 Method for removal of paraffin from producing oil wellsExpiredSep 17, 87Mar 21, 89[E21B]
4806609 Pyrrolidonyl acrylate block polymersExpiredApr 18, 88Feb 21, 89[C08L]
4800077 Guerbet quaternary compoundsExpiredJan 13, 88Jan 24, 89[A61K]
4787989 Anionic soil release compositionsExpiredJan 13, 88Nov 29, 88[D06M, C11D]
4767815 Guerbet alcohol estersExpiredNov 09, 87Aug 30, 88[C08K]
4760152 Pyrrolidonyl acrylate block polymersExpiredMar 02, 87Jul 26, 88[C08G, C08F]
4738787 Cationic soil release polymersExpiredMay 26, 87Apr 19, 88[D06M]

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