OIL LIFT TECHNOLOGY INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 789
 
  
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 146
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 148
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 190
 
  
 
F16P SAFETY DEVICES IN GENERAL110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9322238 Polish rod locking clampMar 12, 15Apr 26, 16[F16B, E21B]
9074727 Safety guard for a rotatable memberJul 24, 13Jul 07, 15[F16P, E21B]
9027717 Cam-actuated centrifugal brake for preventing backspinDec 14, 06May 12, 15[F16D, F04C, E21B]
9016362 Polish rod locking clampOct 07, 04Apr 28, 15[E21B]
7044217 Stuffing box for progressing cavity pump driveAug 11, 03May 16, 06[E21B]
6843313 Pump drive head with stuffing boxJun 11, 01Jan 18, 05[E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0062,048 PULLING CLAMP FOR CONTINUOUS ROD OR COILED TUBING STRINGSAbandonedSep 07, 12Mar 14, 13[E21B]
2011/0266,005 CONTINUOUS ROD PUMP DRIVE SYSTEMAbandonedApr 29, 11Nov 03, 11[E21B]

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