ANDRITZ INC.

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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 THEREFOR831
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 349
 
  
 
D21B FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT182
 
  
 
B01D SEPARATION 16118
 
  
 
D21D TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE 152
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 562
 
  
 
C12P FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 594
 
  
 
B05B SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 460
 
  
 
C12M APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY 445
 
  
 
D21F PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON425

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0175,328 METHOD AND APPARATUS FOR PUMPING SAWDUST FEED IN A SAWDUST PULPING SYSTEMDec 21, 16Jun 22, 17[D21C]
2016/0168,789 ROTARY FEEDER WITH RECESS FOR PROTECTIVE BAFFLE AND SHEAR EDGE ASSEMBLYNov 24, 15Jun 16, 16[D21B]
2016/0138,220 SEGMENTED ROTOR CAP ASSEMBLYNov 09, 15May 19, 16[D21D]
2015/0233,053 METHOD AND APPARATUS FOR ADDING STEAM FOR A STEAM EXPLOSION PRETREATMENT PROCESSSep 18, 13Aug 20, 15[D21B]
2001/0023,748 Method and apparatus for continuously pulping cellulosic fibrous materialMay 31, 01Sep 27, 01[D21C]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9904909 Chipper machine wear plate, replaceable wear plate corner piece, and anvil monitoringOct 31, 16Feb 27, 18[G06Q, G05B, G06F, B27L, G06K]
9856601 Method and apparatus for adding steam for a steam explosion pretreatment processSep 18, 13Jan 02, 18[D21B, D21C]
9803319 Press roll comb plate and related methodDec 11, 15Oct 31, 17[D21F, B30B, D21C]
9771682 Adjustment assembly for axially adjusting a rotor in a rotary feederNov 09, 16Sep 26, 17[F16M, B65G, D21C]
9708765 Rotor refiner plate element for counter-rotating refiner having curved bars and serrated leading edgesJul 12, 12Jul 18, 17[B02C, D21D]
9670615 Conical rotor refiner plate element for counter-rotating refiner having curved bars and serrated leading sidewallsAug 03, 12Jun 06, 17[B02C, D21D]
9638421 Startup burner assembly for recovery boiler and methodFeb 12, 15May 02, 17[F23Q, F23C, F23D]
9604221 Stator refiner plate element having curved bars and serrated leading edgesOct 17, 13Mar 28, 17[B02C, D21D]
9605379 Cast refiner plate segment with blunt edges and corners for safe handlingJan 31, 14Mar 28, 17[B02C, B23P, D21D]
9551430 Flat-face valve for pulp rotary drum vacuum washer filter and methodOct 01, 13Jan 24, 17[F16K, B01D, D21C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0090,412 PROCESS FOR PRODUCTION OF MICRO FIBRILLATED CELLULOSEAbandonedOct 10, 14Apr 02, 15[D21H]
2015/0034,733 ASSEMBLY FOR WASHER SHOWER PIPE AND METHOD TO ADJUST OPEN AREA OF ORIFICES IN THE PIPEAbandonedJul 24, 14Feb 05, 15[B05B, D21D]
2014/0338,252 METHOD OF USING REACTOR VESSEL HAVING SINGLE CONVERGENCE SIDEWALL PLATESAbandonedAug 01, 14Nov 20, 14[C10G, D21C]
2014/0174,688 TEETH FOR DISPERSER PLATE HAVING GROOVES AND TAPERAbandonedDec 03, 13Jun 26, 14[D21F]
2014/0144,600 METHOD AND SYSTEM FOR THIN CHIP DIGESTER COOKINGAbandonedFeb 03, 14May 29, 14[D21C]
2014/0110,509 PIPING SYSTEM FROM REACTOR TO SEPARATOR AND METHOD TO CONTROL PROCESS FLOWAbandonedOct 04, 13Apr 24, 14[B01J]
2014/0110,511 REFINER PLATES WITH SHORT GROOVE SEGMENTS FOR REFINING LIGNOCELLULOSIC MATERIAL, AND METHODS RELATED THERETOAbandonedOct 02, 13Apr 24, 14[B02C, D21D]
2014/0091,049 CLARIFIER WITH FEEDWELL AND METHODS OF CLARIFYING LIQUIDSAbandonedSep 13, 13Apr 03, 14[B01D]
2014/0069,876 ROTARY DISC FILTER APPARATUS AND RELATED METHODSAbandonedAug 12, 13Mar 13, 14[B01D]
2013/0146,547 SCREEN BASKET HAVING DIAGONAL SLOTS FOR TOP SEPARATOR OF A DIGESTERAbandonedNov 14, 12Jun 13, 13[D21D]
2013/0129,573 SYSTEM AND APPARATUS TO EXTRACT AND REDUCE DISSOLVED HEMI-CELLULOSIC SOLIDS IN BIOMASS FOLLOWING PRE-HYDROLYSISAbandonedJan 23, 13May 23, 13[B01J]
2013/0105,295 SYSTEM FOR THE TORREFACTION OF LIGNOCELLULOSIC MATERIALAbandonedJun 28, 12May 02, 13[C10B]
2013/0098,751 METHOD FOR THE TORREFACTION OF LIGNOCELLULOSIC MATERIALAbandonedJun 28, 12Apr 25, 13[C10B]
2013/0075,244 METHOD AND SYSTEM FOR THE TORREFACTION OF LIGNOCELLULOSIC MATERIALAbandonedJun 28, 12Mar 28, 13[C10B]
8397878 Electrically actuated storm brake for crane and method for actuating the brakeExpiredJan 16, 09Mar 19, 13[B61H]
8353989 Apparatus and method for treating, pressing and washing biomassExpiredJul 15, 09Jan 15, 13[B01J, C13K]
2013/0000,859 APPARATUS TO ENHANCE FIBER DEVELOPMENT BY ADDITION OF TREATMENT AGENT DURING MECHANICAL PULPINGAbandonedSep 10, 12Jan 03, 13[D21F]
2012/0305,209 HARDWOOD ALKALINE PULPING PROCESSES AND SYSTEMSAbandonedAug 10, 12Dec 06, 12[D21C]
8246750 sugars using a single vesselExpiredAug 08, 11Aug 21, 12[C13B]
8192549 Apparatus and method for hydrolysis of cellulosic material in a two-step processExpiredJun 04, 09Jun 05, 12[C13B]

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