Ash Grove Cement Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F27B FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS1014
 
  
 
F23G CREMATION FURNACES; CONSUMING WASTE BY COMBUSTION57
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 464
 
  
 
B01D SEPARATION 1133
 
  
 
F23D BURNERS 131
 
  
 
F23K FEEDING FUEL TO COMBUSTION APPARATUS 110
 
  
 
F23N REGULATING OR CONTROLLING COMBUSTION 120

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8267685 Method of mixing high temperature gases in mineral processing kilnsJan 26, 09Sep 18, 12[F27B]
7854789 System and process for controlling pollutant emissions in a cement production facilityMar 31, 08Dec 21, 10[B01D]
7488172 Methods of mixing high temperature gases in mineral processing kilnsMay 07, 07Feb 10, 09[F27B]
6672865 Method of mixing high temperature gases in mineral processing kilnsSep 11, 01Jan 06, 04[F27B]
6345981 Controlled solid fuel thermolysis in preheater/precalciner kilnsJul 27, 00Feb 12, 02[F27B]
5816795 Apparatus and method for providing supplemental fuel to a preheater/precalciner kilnMay 24, 96Oct 06, 98[F27B]
5788762 Cementitious systems and methods of making the sameJan 27, 97Aug 04, 98[C04B]
5649823 Apparatus for improved manufacture of cement in long kilnsDec 13, 94Jul 22, 97[F27B]
5632616 Method and apparatus for injecting air into long cement kilnsNov 28, 94May 27, 97[F27B]
5626665 Cementitious systems and novel methods of making the sameNov 04, 94May 06, 97[C04B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7959435 emissions in rotary kilns by SNCRExpiredJan 09, 07Jun 14, 11[F27B]
7229281 Method of mixing high temperature gases in mineral processing kilnsExpiredMay 25, 05Jun 12, 07[F27B]
2006/0201,395 Blended fly ash pozzolansAbandonedMar 08, 05Sep 14, 06[C04B]
2004/0115,582 Method of mixing high temperature gases in mineral processing kilnsAbandonedNov 21, 03Jun 17, 04[F27B]
2003/0205,175 Method and apparatus for using metallurgical slag in cement clinker productionAbandonedMay 02, 02Nov 06, 03[C04B, F27B]
6050203 Method for use of solid waste as fuel for cement manufactureExpiredJul 16, 97Apr 18, 00[A47J]
5724899 Modified cement kiln for burning combustible solid waste as supplemental fuelExpiredAug 09, 94Mar 10, 98[F23G]
5366289 Portable agitator for fluidizing bottom solids in tanksExpiredDec 06, 93Nov 22, 94[B01F]
5341962 Swing arm feederExpiredFeb 17, 93Aug 30, 94[G01F]
5282681 Portable agitator for fluidizing bottom solids in tanksExpiredJul 29, 92Feb 01, 94[B01F]
4974529 Method for energy recovery from containerized hazardous wasteExpiredSep 25, 89Dec 04, 90[F23G]
4969407 Containerized hazardous waste homogenateExpiredJan 11, 90Nov 13, 90[F23G]
4850290 Method for energy recovery from solid hazardous wasteExpiredNov 23, 88Jul 25, 89[F23G]
4494990 Cementitious compositionExpiredJul 05, 83Jan 22, 85[C04B]

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