KENT, ROBERT A.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
E21B EARTH OR ROCK DRILLING 1482
 
 
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR689
 
 
 
C23F NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES 135

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8794316 Refracture-candidate evaluation and stimulation methodsApr 02, 08Aug 05, 14[E21B]
8689872 Methods and compositions for controlling formation fines and reducing proppant flow-backJul 24, 07Apr 08, 14[E21B]
8470747 Carboxylic acid and oxidizer clean-up compositions and associated methods of use in subterranean applicationsOct 20, 08Jun 25, 13[C09K]
8183186 Cement-based particulates and methods of useNov 05, 08May 22, 12[C09K, E21B]
8012582 Sintered proppant made with a raw material containing alkaline earth equivalentSep 25, 08Sep 06, 11[C09K, E21B]
7998906 Methods and compositions for treating subterranean formationsAug 21, 08Aug 16, 11[C09K, C23F]
7931084 Methods for treating a subterranean formation by introducing a treatment fluid containing a proppant and a swellable particulate and subsequently degrading the swellable particulateOct 14, 08Apr 26, 11[E21B]
7932215 Methods of treating a portion of a well with a polymer or polymer system capable of forming a gel that dissolves at a low and high pHMar 12, 09Apr 26, 11[C09K, C23F, E21B]
7896072 Calorimetric distributed temperature system and methodsNov 05, 08Mar 01, 11[E21B]
7897545 Fluid loss compositions and methods of use for subterranean operationsAug 08, 08Mar 01, 11[C09K, B01F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0048,430 Delayed crosslinking agents for high-temperature fracturingAbandonedAug 19, 08Feb 25, 10[C09K]
2009/0308,599 Method of enhancing treatment fluid placement in shale, clay, and/or coal bed formationsAbandonedJun 13, 08Dec 17, 09[E21B]
2009/0298,720 Methods for maintaining fracture conductivityAbandonedMay 27, 08Dec 03, 09[C09K]
2009/0281,006 Methods of treating a lower-quality water for use as some of the water in the forming and delivering of a treatment fluid into a wellboreAbandonedMay 07, 08Nov 12, 09[E21B]
2009/0253,594 Methods for placement of sealant in subterranean intervalsAbandonedApr 04, 08Oct 08, 09[C09K]
4478423 Oil seal and unitized seal carrier for reciprocating shaftExpiredApr 18, 84Oct 23, 84[F16J]

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