Specialised Petroleum Services Group Limited

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 5944
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 256
 
  
 
B25G HANDLES FOR HAND IMPLEMENTS 212
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 247
 
  
 
E03B INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER 112

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9745828 Valve seat assembly, downhole tool and methodsJul 03, 13Aug 29, 17[E21B]
9410570 ClampMar 04, 13Aug 09, 16[B23P, F16B, B25G, E21B]
9022130 Downhole valve tool and method of useApr 12, 10May 05, 15[E21B]
8955584 Drill string mounted rotatable tool and cleaning methodAug 06, 09Feb 17, 15[E21B]
8869884 Diverter cup assemblyFeb 23, 10Oct 28, 14[E21B]
8844622 Wellbore cleaning method and apparatusApr 01, 13Sep 30, 14[E21B]
8689877 Downhole toolJul 16, 09Apr 08, 14[E21B]
8684074 Work string mounted cleaning tool and assembly methodOct 23, 09Apr 01, 14[E21B]
8672035 Downhole tool of high pressure operating cycle capabilityOct 20, 09Mar 18, 14[E21B]
8408307 Wellbore cleaning method and apparatusJun 29, 06Apr 02, 13[E21B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0065,125 VALVE SEAT ASSEMBLY, DOWNHOLE TOOL AND METHODSAbandonedFeb 13, 08Mar 18, 10[F16K]
6302214 Apparatus and method for inflating packers in a drilling wellExpiredNov 17, 99Oct 16, 01[E21B]
2001/0017,210 Liner setting toolAbandonedJan 12, 01Aug 30, 01[E21B]

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