Beijing Rechsand Science & Technology Group Co., Ltd

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 1133
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 167
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR194
 
  
 
E02B HYDRAULIC ENGINEERING 117
 
  
 
E03B INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER 112
 
  
 
E03F SEWERS; CESSPOOLS111
 
  
 
E04B GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS 146
 
  
 
E04C STRUCTURAL ELEMENTS; BUILDING MATERIALS 125
 
  
 
E21B EARTH OR ROCK DRILLING 195

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0145,302 SELF-SUSPENDING PROPPANT AND PREPARATION AND USE THEREOFMar 27, 15May 25, 17[C09K, E21B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9359755 Water purification and storage system, water-filtering well and polygonal building blockApr 26, 13Jun 07, 16[E03B, E03F, C02F]
9290900 Oil-water separating device and floating oil collecting system comprising sameJun 21, 11Mar 22, 16[E02B, C02F, B01D]
8925276 Wall block, corner, and wall bodyOct 31, 11Jan 06, 15[E04B, E04C]
8652250 Composition used for high-strength and impermeable concreteSep 09, 10Feb 18, 14[C04B, B22C]
8354021 System of water collecting, cleaning, and storingMar 07, 08Jan 15, 13[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0283,685 ANTI-PENETRATION AND GAS PERMEABLE POTTING CONTAINER, PREPARATION METHOD THEREOF, POTTING PLANTING CONTAINER AND POTTINGAbandonedMay 18, 11Oct 31, 13[A01G]
2012/0088,699 FILM COATED PARTICLES FOR OIL EXPLOITATION AND OIL EXPLOITATION METHOD USING THE SAMEAbandonedMay 20, 10Apr 12, 12[C09K]
2011/0215,049 FILTERING ELEMENT AND METHOD FOR MAKING THE SAME AND WATER TREATING DEVICEAbandonedNov 17, 09Sep 08, 11[B01D]
2010/0133,166 COMPOSITE WATER PERMEABLE BRICK AND COMPOSITION FOR PRODUCING THE SAMEAbandonedSep 29, 07Jun 03, 10[C09D, E02B, B01D, C08K]

Top Inventors for This Owner

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