GUANGZHOU NEW EXTEND RISING ENVIRONMENTAL PROTECTION TECHNOLOGIES MACHINERY EQUIPMENT CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 352
 
  
 
F26B DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM 228
 
  
 
C05D INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE19
 
  
 
C05F ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE111

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9212075 Method for retreating dewatered sludgeAug 20, 12Dec 15, 15[C05F, C05D, C02F]
9021716 Devices for air-drying sludgeMar 08, 10May 05, 15[F26B, C02F]
8808419 Method of integration of concentration-dehydration and aerobic air-drying of sewage sludgeNov 18, 09Aug 19, 14[C05F, C02F]
8387275 Method for drying sludgeMay 28, 08Mar 05, 13[F26B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0246,965 Method and Apparatus for Aerobically Air-drying Sludge Filter CakesAbandonedNov 18, 09Oct 04, 12[F26B]
2010/0282,683 SLUDGE CONCENTRATION AND DEHYDRATION METHODAbandonedMay 30, 08Nov 11, 10[C02F]

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