ANDRITZ OY

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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 THEREFOR375
 
  
 
B01D SEPARATION 11123
 
  
 
D21F PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON722
 
  
 
F23G CREMATION FURNACES; CONSUMING WASTE BY COMBUSTION66
 
  
 
B27L REMOVING BARK OR VESTIGES OF BRANCHES 53
 
  
 
B07B SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL 417
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 463
 
  
 
B07C POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING 324
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 320
 
  
 
F23J REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 314

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0211,232 METHOD FOR HANDLING SPENT WASH SOLUTION OF A LIGNIN-RECOVERY PROCESSMar 27, 15Jul 27, 17[D21C]
2017/0183,818 A METHOD OF FEEDING A SEALING MEDIUM INTO A LIQUOR FILTER AND A LIQUOR FILTERMar 26, 15Jun 29, 17[D21C, F16J, B01D]
2017/0016,180 METHOD AND ARRANGEMENT FOR GENERATING STEAM AT A DIGESTER PLANT OF A CHEMICAL PULP MILLMar 04, 15Jan 19, 17[D21C]
2016/0040,356 METHOD AND ASSEMBLY FOR PROCESSING CELLULOSE PULP OF WOOD PROCESSING INDUSTRYOct 19, 15Feb 11, 16[D21C]
2015/0377,677 OPTICAL REMOTE SENSING SYSTEM FOR PROCESS ENGINEERING CONTROLFeb 20, 14Dec 31, 15[G01S, G01F]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9901853 Method and apparatus for washing pulp by means of intensified suctionDec 14, 12Feb 27, 18[B01D]
9719209 Method for leaching recovery-boiler ashNov 15, 13Aug 01, 17[C22B, D21C]
9713811 Bottom grate of a crusher or drum chipper and method of producing the bottom grateMay 04, 12Jul 25, 17[B02C]
9643885 Method and arrangement for burning lime mudFeb 23, 12May 09, 17[C04B, C10J, F27B, F27D]
9636611 Method for removing the precoat layer of a rotary filterFeb 05, 13May 02, 17[B01D, D21C]
9573140 Closing valve unit for a cycloneSep 06, 12Feb 21, 17[F16K, B04C]
9562323 Recovery boiler plant of a chemical pulp millMay 16, 13Feb 07, 17[B01J, D21C, E04H]
9540767 Method for bleaching pulpApr 03, 13Jan 10, 17[D21H, D21C]
9541286 Method for expanding a chemical recovery boilerOct 18, 05Jan 10, 17[F23G, F23M, D21C]
9469491 Rotary feederJun 24, 13Oct 18, 16[B65G]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0102,648 METHOD AND ARRANGEMENT FOR TREATING CHEMICAL PULPAbandonedMar 21, 12Apr 17, 14[D21C]
2013/0313,082 FRAME OF THE DISCHARGE END OF A CONVEYOR AND METHOD OF PRODUCING THE FRAMEAbandonedOct 25, 11Nov 28, 13[B65G]
2011/0240,783 METHOD AND ARRANGEMENT FOR IMPROVING THE FIXING ARRANGEMENT OF A CHIPPER BLADEAbandonedDec 07, 09Oct 06, 11[B02C, B21D]
2011/0079,492 AN APPARATUS FOR RECLAIMING ROLLING MATERIAL FROM A PILEAbandonedJun 10, 09Apr 07, 11[B65G]
2010/0282,664 DEVICE FOR DEWATERING OF PULPAbandonedSep 15, 08Nov 11, 10[B01D]
7569200 Method for reducing nitrogen oxide emissionsExpiredJun 02, 05Aug 04, 09[F23G, F23J, F23C, B01D]
7556071 Debarking mechanismExpiredMar 29, 05Jul 07, 09[B27L]
2008/0289,782 RECOVERY PROCESS AND SYSTEM FOR A PULP MILLAbandonedApr 23, 08Nov 27, 08[D21C]
7267146 Chipper bed knifeExpiredOct 24, 05Sep 11, 07[B27C]
2006/0272,745 Method for optimizing the debarking result of logs debarked in a debarking drumAbandonedDec 17, 03Dec 07, 06[A01G, B27L]
7128216 Closed air circulation systemExpiredSep 19, 01Oct 31, 06[B07C]
2006/0105,277 Method and burner for rotary kilnsAbandonedJun 16, 03May 18, 06[F23D]
6736934 Method of pretreating pulp in an acid tower prior to bleaching with peroxideExpiredJul 28, 97May 18, 04[D21C]
6733625 Method and apparatus for treating pulpExpiredMay 15, 01May 11, 04[D21C]
6733629 Method of controlling the operation of an approach system of a paper machine or the like web formation apparatusExpiredFeb 15, 02May 11, 04[D21D]
2004/0040,684 Arrangement for feeding pulp to a bleaching towerAbandonedJun 13, 03Mar 04, 04[D21C]
2004/0011,484 Method of producing energy at a pulp millAbandonedApr 25, 03Jan 22, 04[D21C]
6619345 Arrangement for a debarking shaftExpiredApr 11, 02Sep 16, 03[B27L]
6588467 Arrangement in the discharge end of a debarking machineExpiredApr 11, 02Jul 08, 03[B27L]
6582601 Method and apparatus for separating soapExpiredJan 18, 00Jun 24, 03[B01D]

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