VOITH SULZER STOFFAUFBEREITUNG GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 134
 
  
 
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 120
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6047834 Process for the manufacture of a sifting device with slit-shaped openings and an appropriately manufactured sifting deviceApr 23, 97Apr 11, 00[B23P, B07B]
5727743 Device and treatment machine for the mechanical treatment of high-consistency fibrous materialNov 12, 96Mar 17, 98[B02C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6129212 Flotation process and mixing deviceExpiredApr 15, 97Oct 10, 00[B03D]
6083350 System for treatment of waste paper having a pulping drum and a perforated sorting areaExpiredOct 23, 97Jul 04, 00[D21B]
6042735 Process and device to drain a fibrous pulp suspensionExpiredAug 29, 97Mar 28, 00[B01D]
6036029 Device to drain a fibrous pulp suspensionExpiredAug 29, 97Mar 14, 00[B01D]
5958179 Process for increasing pulp whiteness by bleaching printed wastepaper under intense dispersing mechanical treatmentExpiredApr 11, 97Sep 28, 99[D21B, D21C]
5904308 Device and treatment machine for the mechanical treatment of high-consistency fibrous materialExpiredNov 12, 96May 18, 99[7./1, B02C]
5836689 Device for kneading high-consistency fiber pulpExpiredMay 09, 97Nov 17, 98[B01F]
5779168 Refiner and tooling for refining suspended fibrous materialExpiredFeb 29, 96Jul 14, 98[B02C]
5768783 Method for fabricating a flat or centripetal wireExpiredJan 24, 97Jun 23, 98[B21D]
5770050 Flotation apparatusExpiredJul 21, 95Jun 23, 98[B03D, B04C, D21C]
5730376 Apparatus for regulated dispersion treatment of highly consistent fibrous substancesExpiredJun 27, 96Mar 24, 98[B02C]
5611434 Rotor for a screen graderExpiredJan 17, 95Mar 18, 97[B07B]
5566903 Roller mill for milling suspended fibrous materialExpiredOct 20, 94Oct 22, 96[B02C]
5529170 Feed screw for sedimentation or treatment systemsExpiredJan 20, 95Jun 25, 96[B65G]

Top Inventors for This Owner

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