COURTAULDS PLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
A62B DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING 135
 
 
 
C08B POLYSACCHARIDES; DERIVATIVES THEREOF 127
 
 
 
D21C PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5,255,673 Pressure vesselsJul 26, 91Oct 26, 93[A62B]
5,114,535 Process for the production of cellulose acetate from wood pulpMar 19, 91May 19, 92[D21C, C08B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5,534,573 Aminotriazine phosphonates in plasticsExpiredJun 08, 94Jul 09, 96[C08K]
5,520,869 Treatment of fibreExpiredOct 14, 94May 28, 96[D06M, D01F]
5,403,530 Elongate member production methodExpiredJul 20, 93Apr 04, 95[D01F]
5,299,435 Locked inlay knit fabricsExpiredJan 10, 92Apr 05, 94[D04B]
5,204,172 Flexible fabric thermal insulatorsExpiredAug 16, 91Apr 20, 93[B27N, B32B]
5,178,381 Processing flexible sheet workpiecesExpiredApr 19, 91Jan 12, 93[B65H]
5,108,810 Composite elementExpiredApr 13, 90Apr 28, 92[D04C, E04B]
5,092,168 Monitoring fabric propertiesExpiredOct 11, 90Mar 03, 92[G01N]
5,091,130 Process for the production of highly filled yarnsExpiredMay 29, 90Feb 25, 92[D01D]
5,051,110 Fibrous materialExpiredApr 27, 90Sep 24, 91[D06M]
5,036,900 Method for acetylating shredded cellulosicExpiredOct 17, 90Aug 06, 91[D21C, C08B]
4,999,388 Branched polyester resin composition having enhanced melt viscosityExpiredSep 14, 89Mar 12, 91[C08L]
4,992,347 MarkingExpiredJan 11, 90Feb 12, 91[G03C]
4,923,724 Composite articlesExpiredFeb 01, 89May 08, 90[D03D, B29C]
4,902,562 Electrically conductive materialsExpiredJul 07, 88Feb 20, 90[B02B]
4,883,551 Manufacture of flexible sheet materialExpiredMay 26, 87Nov 28, 89[B32B]
4,828,896 Patterned thermoplastics tile and method of making sameExpiredJun 11, 87May 09, 89[B44C, B44F]
4,772,638 Compositions having reduced smoke emissionExpiredDec 22, 87Sep 20, 88[F09K]
4,711,967 Production of S-aryl S-alkyl dithiocarbonatesExpiredApr 28, 86Dec 08, 87[C07C]
4,680,335 Polymer compositionsExpiredMar 18, 86Jul 14, 87[C08J, C08K]

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