MAN GUTEHOFFNUNGSHUTTE AKTIENGESELLSCHAFT

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C21B MANUFACTURE OF IRON OR STEEL 221
 
  
 
B01D SEPARATION 1133
 
  
 
B60B VEHICLE WHEELS 131
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 122
 
  
 
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 124
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 144
 
  
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 158
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 1101

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5678806 Plate coolers for shaft furnacesMay 03, 96Oct 21, 97[C21B]
5602867 Method of and device for operating an arc furnace with two vesselsDec 07, 95Feb 11, 97[F27D]
5586995 Filter for separating pollutants from flue gasesMar 07, 95Dec 24, 96[B01D]
5533770 High-strength solid wheels and tires for railroad traction vehicles and carsJun 30, 94Jul 09, 96[B60B]
5375053 Controlled power supplyOct 08, 93Dec 20, 94[H02M]
5244188 Locking device for the overextensioning of a pipeline compensatorApr 01, 92Sep 14, 93[C21B]
5099916 Cooler for particle-laden gasesFeb 05, 91Mar 31, 92[F28D, F22B]
5058288 Plumb bob device for determining the bed height of bulk material in a shaft furnaceApr 18, 91Oct 22, 91[G01F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5806299 Process and apparatus for quickly switching over from premix combustion to diffusion combustion in a gas turbineExpiredFeb 14, 97Sep 15, 98[F02C]
5762468 Process for protecting a turbocompressor from operation in the unstable working range by means of fittings with two different regulating speedsExpiredNov 01, 96Jun 09, 98[F04D]
5676908 Plate for cooling shaft furnacesExpiredDec 07, 95Oct 14, 97[C21B]
5673901 Device for transporting molten metal in the pouring bay of a shaft furnace and process for operating this deviceExpiredJul 25, 96Oct 07, 97[C21B]
5650119 Cooling plate for a blast furnanceExpiredDec 21, 95Jul 22, 97[C21B]
5632370 Pivoting transfer means at belt conveyorExpiredMar 09, 95May 27, 97[B65G]
5613418 Multiple-stage hydraulic cylinderExpiredNov 22, 95Mar 25, 97[F15B, F01B]
5599176 Threaded-rotor compressorExpiredFeb 03, 95Feb 04, 97[F04B]
5545251 Method of and device for directly reducing fine-particle ores and concentrates thereofExpiredAug 05, 94Aug 13, 96[C21B]
5522326 Device for removing toxic solid and/or liquid substances from projectiles filled with chemical warfare agentsExpiredSep 30, 94Jun 04, 96[F23B]
5511795 Combined segmented and pneumatic seal for drum-type furnacesExpiredFeb 04, 94Apr 30, 96[F16J]
5501563 Bulk material loading and unloading facility for sea-going shipsExpiredJan 27, 94Mar 26, 96[B63B]
5480274 Aircraft tug without tow barExpiredJul 08, 94Jan 02, 96[B64F]
5462259 Tilting device for a D.C. arc furnace and process for emptying the furnaceExpiredAug 23, 94Oct 31, 95[C21C]
5413621 Process for cooling and purifying hot, dust-laden flue gases containing dioxins and other toxic substancesExpiredJun 25, 93May 09, 95[C22B]
5381440 Bottom electrode for direct current arc furnacesExpiredJul 09, 93Jan 10, 95[F27D]
5370490 Cargo pickup member for a continuously operating ship unloaderExpiredJan 27, 93Dec 06, 94[B65G]
5320471 Suspension and guide of a vertical conveyor in the discharge trunk of a ship unloaderExpiredOct 27, 92Jun 14, 94[B65G]
5314262 Hoisting gear on the trolley of a container craneExpiredDec 17, 92May 24, 94[B66C]
5305868 Cover belt conveyorExpiredNov 20, 92Apr 26, 94[B65G]

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