VALMET 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 THEREFOR404
 
  
 
D21F PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON3410
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES1564
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 629
 
  
 
D21D TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE 54
 
  
 
B30B PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR 418
 
  
 
C07G COMPOUNDS OF UNKNOWN CONSTITUTION 46
 
  
 
C08H DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS 411
 
  
 
B01D SEPARATION 3131
 
  
 
1509 MACHINE TOOLS, ABRADING AND FOUNDING MACHINERY326

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0056,307 CYCLONE SEPARATOR ARRANGEMENT AND METHODFeb 15, 16Mar 01, 18[B04C, C12M]
2017/0266,752 WELDING HEAD FOR MAGNETIC PULSE WELDING OF TUBULAR PROFILES TO A CYLINDRICAL INNER MEMBERAug 18, 14Sep 21, 17[H05B, B23K]
2017/0157,546 A STEAM SEPARATION UNIT FOR A SYSTEM FOR HYDROLYSIS OF LIGNOCELLULOSIC BIOMASS MATERIALJun 24, 15Jun 08, 17[B04C, C13K, B01J, B01D]
2017/0130,397 METHOD OF PRODUCING DISSOLVING PULP FROM LIGNOCELLULOSIC MATERIALJun 15, 15May 11, 17[C08B, D21C]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9828201 Reel-up for receiving and winding into a roll a paper web that arrives from a drying cylinder in a paper making machine and a paper making machine using a reel-upNov 21, 14Nov 28, 17[B08B, B65H]
9816229 Bin arrangement for the collecting and discharging of smaller ligno-cellulosic materialMar 14, 14Nov 14, 17[B65D, D21D, D21C]
9777033 Method for lignin separation from black liquorMar 16, 12Oct 03, 17[C07G, C08H, C10L, D21C]
9738476 Reel-up for winding a paper web into a roll and a method of winding a paper web to form a rollApr 15, 14Aug 22, 17[B65H, D21H, D21F]
9708767 Extended nip roll for use in a nip through which a fibrous web is to be passedOct 29, 14Jul 18, 17[D21G, D21F]
9663896 Method for recovering hydrolysateNov 03, 15May 30, 17[D21C]
9631317 Method for displacement in batch digestersNov 25, 15Apr 25, 17[D21C]
9598818 Apparatus for washing and/or dewatering of cellulose pulpDec 19, 13Mar 21, 17[D21F, D21D, D21C]
9580864 Kraft cooking method using polysulfide cooking liquorOct 03, 16Feb 28, 17[D21C]
9557105 Method and arrangement for torrefaction with controlled addition of cooling liquid to the torrefied materialNov 29, 11Jan 31, 17[C10L, F26B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2017/0089,009 ARRANGEMENT FOR FEEDING COMMINUTED MATERIAL USING A PLUG SCREW FEEDERAbandonedMay 19, 15Mar 30, 17[D21B, B65G, D21C]
2015/0322,104 METHOD FOR PRODUCING HIGH PURITY LIGNINAbandonedJan 24, 13Nov 12, 15[C07G]
2014/0299,283 KRAFT COOKING METHOD USING POLYSULFIDE COOKING LIQUORAbandonedAug 30, 11Oct 09, 14[D21C]
8647473 Continuous digester with a bottom scraper equipped with draining aperturesExpiredJan 25, 11Feb 11, 14[D21C]
2013/0174,437 POSITIONING DEVICE FOR A DRAIN PIPE IN A DRYING CYLINDERAbandonedSep 01, 11Jul 11, 13[D21F]
6998018 Method and apparatus for making a creped tissue with improved tactile qualities while improving handling of the webExpiredJul 28, 04Feb 14, 06[B31F]

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