METSO PAPER SWEDEN AB

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
D21C PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR462
 
  
 
B01D SEPARATION 5129
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 395
 
  
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 163
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES178
 
  
 
D21F PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON128

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8574402 Feeding system having pumps in parallel for a continuous digesterMar 19, 09Nov 05, 13[D21C]
8545674 Method to use heat energy from black liquorNov 20, 07Oct 01, 13[D21C]
8449717 Method for preventing clogging in a strainer construction for a continuous digesterOct 12, 09May 28, 13[D21C]
8444851 System for reception and transport of lime mud from a white liquor filterDec 04, 08May 21, 13[B01D, D21C]
8377261 High pressure sluice feederMay 04, 09Feb 19, 13[D21C]
8366802 Cyclone with improved separation of gas from gas laden liquid streams also at reduced flow volumesJul 14, 08Feb 05, 13[B01D]
8366876 Method and arrangement for improving a washing step after completed cooking in a continuous digesterDec 20, 10Feb 05, 13[D21C]
8197639 Vapour phase digester and a method for continuous cookingFeb 19, 08Jun 12, 12[D21C]
8088249 Method for the continuous steam pre-treatment of chips during the production of cellulose pulpNov 25, 08Jan 03, 12[D21C]
8088253 Digester screen for a continuous cellulose pulp digesterNov 27, 08Jan 03, 12[D21C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8518273 Method and device for cleaning of filterExpiredMay 24, 05Aug 27, 13[B01D, D21C]
8366875 Method and arrangement for wash after completed digestion in a continuous digester for the production of cellulose pulpExpiredMar 19, 10Feb 05, 13[D21C]
8273212 Method for kraft pulp production where hemicelluloses are returnedExpiredDec 16, 08Sep 25, 12[D21C]
8052843 System and a method for the steam pre-treatment of chips in association with the production of chemical cellulose pulpExpiredNov 30, 06Nov 08, 11[D21C]
7998310 Method for impregnating chipsExpiredJun 21, 05Aug 16, 11[D21C]
7976675 Continuous digester systemExpiredNov 29, 10Jul 12, 11[D21C]
7867363 Continuous digester systemExpiredAug 27, 08Jan 11, 11[D21C]
2011/0001,068 HOSE VALVE FOR FEEDING FINE GRAINED MATERIALAbandonedDec 04, 08Jan 06, 11[F16K]
7615134 Method and arrangement of impregnating chipsExpiredMar 27, 07Nov 10, 09[D21C]
7566380 Continuous digester with fluid circulationExpiredDec 03, 08Jul 28, 09[D21C]
7501043 Steam treatment of chips with the addition of an acid liquidExpiredApr 07, 04Mar 10, 09[D21C]
7497927 Continuous digester with fluid circulationExpiredAug 05, 06Mar 03, 09[D21C]
7381302 Method and arrangement for impregnating chipsExpiredDec 16, 02Jun 03, 08[D21C]
7351305 Method and a digester for the continuous cooking of wood raw material to cellulose pulpExpiredJun 23, 03Apr 01, 08[D21C]
7303655 Apparatus for conditioning a fabric in a papermaking machine and associated methodExpiredSep 09, 04Dec 04, 07[D21F]
7285179 Continuous digester for cellulose pulp including method and recirculation system for such digesterExpiredMar 19, 02Oct 23, 07[D21C]
7270725 Pretreatment of chips with white liquor prior to a treatment with black liquorExpiredDec 13, 02Sep 18, 07[D21C]
7270726 Method for the production of green liquorExpiredNov 21, 03Sep 18, 07[D21C]
7237733 Method and apparatus for producing mechanical fibersExpiredNov 18, 03Jul 03, 07[B02C]
7214291 Method for the modification of cellulose fibresExpiredMar 21, 03May 08, 07[D21C]

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