SERVA GROUP LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 339
 
  
 
E21B EARTH OR ROCK DRILLING 294
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2204
 
  
 
B28C PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER 114
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8511887 Straight through cement mixerApr 26, 12Aug 20, 13[B01F]
8267183 Gripper for coiled tubing injectorsMay 07, 12Sep 18, 12[E21B]
8215823 Straight through cement mixerAug 16, 11Jul 10, 12[B01F]
8191620 Gripper for coiled tubing injectorsAug 28, 09Jun 05, 12[E21B]
8192070 Straight through cement mixerMar 20, 08Jun 05, 12[B01F]
7614276 Method for determining absolute density of cement slurrySep 06, 06Nov 10, 09[G01N]
7600414 Method for determining absolute density of cement slurryJan 25, 07Oct 13, 09[G01N]
6644844 Mobile blending apparatusFeb 21, 03Nov 11, 03[B28C]

Expired/Abandoned/Withdrawn Patents

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