POLYSIUS AG

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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 233

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5392998 Sifter for sifting granular material and grinding system with insertion of such a sifterJul 19, 93Feb 28, 95[B02C]
5203513 Wear-resistant surface armoring for the rollers of roller machines, particularly high-pressure roller pressesFeb 20, 91Apr 20, 93[B02C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7195480 Shaft preheaterExpiredNov 02, 04Mar 27, 07[F27D]
7033417 Method and installation for reducing orefines in a multi-stage suspension gas stream using a cyclone separatorExpiredSep 26, 00Apr 25, 06[C21B]
6918760 Shaft pre-heaterExpiredJul 18, 02Jul 19, 05[F27D]
6877445 Chamber having discharge baseExpiredDec 31, 02Apr 12, 05[F23G, F23J]
6805554 Plant and method for the production of cement clinkerExpiredOct 15, 03Oct 19, 04[F27B]
6644479 Method and air separator for classifying charging material reduced in sizeExpiredApr 10, 02Nov 11, 03[B07B]
6551100 Device for thermally treating a materialExpiredApr 10, 02Apr 22, 03[F27B]
6357683 Roller grinding millExpiredJul 29, 00Mar 19, 02[B02C]
6325620 Method of reducing volatile pollutants in the exhaust gases from a heat exchanger systemExpiredJul 06, 00Dec 04, 01[F27B]
6264738 Method of producing cement clinker and associated deviceExpiredFeb 16, 98Jul 24, 01[C04B]
6030448 Method for producing cement clinkerExpiredJan 28, 98Feb 29, 00[C04B]
5961056 Method and apparatus for fine comminution of granular mill feed materialExpiredSep 17, 97Oct 05, 99[B02C]
5919301 Method and apparatus for heat treatment of fine-grained materialExpiredSep 09, 97Jul 06, 99[C04B]
5754423 Method and apparatus for preparing a mixture of materialsExpiredMay 06, 96May 19, 98[C04B, G05B]
5620116 Rotary vane gateExpiredJan 13, 95Apr 15, 97[G01F]
5572937 Reciprocating grate coolerExpiredJan 22, 96Nov 12, 96[F23H]
5538537 Method of purifying flue gasesExpiredJan 03, 95Jul 23, 96[B01D]
5522557 Roll millExpiredMay 18, 94Jun 04, 96[B02C]
5476377 Method and grate cooler for hot bulk materialExpiredSep 09, 94Dec 19, 95[F27D]
5433597 Rotary kiln inletExpiredJul 18, 94Jul 18, 95[F27B]

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