DIAMOND ENGINEERING CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 364
 
  
 
F23K FEEDING FUEL TO COMBUSTION APPARATUS 29
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
C21B MANUFACTURE OF IRON OR STEEL 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
 
  
 
G01G WEIGHING 127

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9631869 Powder supply device and powder supply methodSep 04, 12Apr 25, 17[B65G, F27D, G01G]
9573775 Powder supply apparatus and powder supply methodFeb 20, 12Feb 21, 17[B65G, F27D, C21B]
9296570 Powder supply device and powder supply methodOct 04, 12Mar 29, 16[F23K, B65G, G01G]
8603339 Activated sludge material, method for reducing excess sludge production in bioreactor, and method of controlling bioreactorAug 26, 08Dec 10, 13[C02F]
5285735 Control apparatus for injection quantity of pulverized coal to blast furnaceJul 14, 92Feb 15, 94[F23K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0021,358 POWDER SUPPLY DEVICE AND POWDER SUPPLY METHODAbandonedFeb 12, 13Jan 22, 15[F23K]

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