KHD HUMBOLDT WEDAG 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 2016
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 860
 
  
 
B30B PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR 616
 
  
 
F27B FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS618
 
  
 
F27D DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 619
 
  
 
B01D SEPARATION 2132
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 247
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM2155
 
  
 
C22C ALLOYS 270
 
  
 
B21B ROLLING OF METAL 131

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0044,060 Method and device for cooling and comminuting hot cement clinkerApr 16, 15Feb 16, 17[C04B, F27B, F27D]
2016/0288,135 CLOSED-CIRCUIT GRINDING PLANT HAVING A PRE-CLASSIFIER AND A BALL MILLDec 09, 14Oct 06, 16[B02C]
2016/0101,427 CLOSED-CIRCUIT GRINDING INSTALLATIONSep 20, 13Apr 14, 16[B02C]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9914664 Method for denitrification of bypass exhaust gases in a plant for producing cement clinkerOct 06, 14Mar 13, 18[C04B, F27B, F27D, B01D]
9725362 Method for using the waste heat from a plant for producing cement and plant for producing cementOct 10, 13Aug 08, 17[C04B, F27B, F27D, F22B]
9649678 Closing element for a rolling press frameOct 11, 11May 16, 17[B02C, B30B, B21B]
9586260 Process for producing a casing for a roller pressOct 08, 15Mar 07, 17[B02C, B22D, B30B, B32B, C22C]
9498779 Method for regulating the roll gap pressure of a roller pressMar 23, 12Nov 22, 16[B02C, B30B]
9388073 Plant for producing cement with central grinding unitJan 04, 12Jul 12, 16[B02C, C04B, F27B]
9375719 Lateral wall for a roller pressOct 15, 10Jun 28, 16[B02C]
9289959 Machine frame for a roller pressMar 16, 11Mar 22, 16[B02C, B30B]
9180516 Roller press bimetallic annular casingMay 06, 11Nov 10, 15[B02C, B22D, B30B, B32B, C22C]
9108377 Roller press having torque balanceMay 06, 11Aug 18, 15[B02C, B30B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0234,021 Shaft with a Flange ConnectionAbandonedSep 20, 12Aug 21, 14[F16D]
2014/0183,291 Grinding roller comprising hard bodies embedded in the surfaceAbandonedJun 19, 12Jul 03, 14[B02C]
2013/0260,669 Process for cooling hot bulk material and coolerAbandonedDec 13, 11Oct 03, 13[F24F]
8449292 Rotary furnace burnerExpiredNov 08, 06May 28, 13[F23C, F23D]
2012/0135,361 GRATE COOLER PLATE HAVING ADJUSTABLE INSERTAbandonedAug 03, 10May 31, 12[F27D]
8083070 Screening device for sieving granular materialExpiredNov 08, 06Dec 27, 11[B07B]
8066211 Closed-circuit grinding plant having sifter and fine material settling deviceExpiredNov 19, 08Nov 29, 11[B02C]
2011/0114,770 ROLLER PRESS COMPRISING A GEAR COUPLINGAbandonedJun 17, 09May 19, 11[B02C]
7896272 Roller press, in particular for interparticle comminutionExpiredJan 31, 07Mar 01, 11[B02C]
7862333 Regulator for the cooling air inflow of a cooling grateExpiredOct 14, 05Jan 04, 11[F27D]
7841273 Roller bearing in a roller pressExpiredJun 10, 05Nov 30, 10[B30B]
2010/0270,750 SEAL FOR A GRATE COOLERAbandonedDec 11, 08Oct 28, 10[F16J]
2010/0127,110 ROLLER PRESS, PARTICULARLY FOR INTERPARTICLE COMMINUTIONAbandonedJul 13, 07May 27, 10[B02C]
7681455 Method and device for monitoring the state of the protective covering of a rotary furnace burnerExpiredNov 08, 06Mar 23, 10[G01L, F23Q]
2010/0050,912 METHOD FOR CONTROLLING THE OPERATION OF A ROTARY FURNACE BURNERAbandonedDec 20, 07Mar 04, 10[F23N, F27B, F23D]
7632092 Regulating device for the cooling air flows of a bulk material grate coolerExpiredDec 16, 04Dec 15, 09[F24H]
2009/0236,455 ROLLER PRESS, IN PARTICULAR FOR INTERPARTICLE CRUSHINGAbandonedJun 01, 07Sep 24, 09[B02C, B30B]
2009/0218,429 HARD ELEMENTS FOR THE AUTOGENOUS WEAR PROTECTION OF ROLLER SURFACESAbandonedMar 05, 07Sep 03, 09[B02C]
2008/0210,797 Tubular MillAbandonedApr 20, 06Sep 04, 08[B02C]
7404677 Fastening of a riding ring to the casing of a rotary cylinderExpiredNov 26, 03Jul 29, 08[F16C]

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