KEJR, 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 1086
 
 
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2204
 
 
 
B23D PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR 128
 
 
 
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

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9863199 Soil sampler lay flat sheet liner systemOct 07, 14Jan 09, 18[E21B]
9551188 Split tube soil sampling systemMar 13, 14Jan 24, 17[E21B]
9085943 Pipe handling deviceDec 31, 12Jul 21, 15[E21B]
8342263 Vibratory drill head mounting and rotation coupling systemDec 04, 09Jan 01, 13[E21B]
8056640 Hydraulic head clamp assembly for mobile drill rigMay 13, 09Nov 15, 11[E21B]
7735553 Snap-lock bushing for prepacked screensJun 26, 07Jun 15, 10[E21B]
6604579 Pressure activated injection probeJan 03, 02Aug 12, 03[E21B]
6029355 Device for cutting soil sampling tubingAug 27, 97Feb 29, 00[B23D]
D397345 Probe rod threadOct 08, 96Aug 25, 98[1509]
5639956 Permeable membrane soil probeNov 22, 95Jun 17, 97[G01N]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0107,725 SYSTEM AND METHOD FOR LOGGING SOIL PROPERTIES IN A BOREHOLEAbandonedOct 30, 08Apr 30, 09[E21B]
6877965 Mechanical bladder pumpExpiredJul 31, 03Apr 12, 05[F04B]
6772651 Soil sampler liner with areas of reduced wall thicknessExpiredJun 25, 01Aug 10, 04[G01N, E49B, E25B]
2003/0205,408 Soil sample liner assembly having permanently attached core catcher for use in dual tube sampling systemAbandonedMay 03, 02Nov 06, 03[E21B]
2002/0178,981 Variable rate driveAbandonedMay 30, 01Dec 05, 02[A01C]
2002/0131,046 Optical soil sensor for mobilized measurement of in-situ soil characteristicsAbandonedMar 13, 01Sep 19, 02[G01N]
5553979 Pull cap for attachment to a probe rodExpiredJan 25, 95Sep 10, 96[F02D, F21B]
5503031 Ground water sampling deviceExpiredApr 28, 95Apr 02, 96[E21B]
5186263 Soil sample probeExpiredSep 17, 90Feb 16, 93[E21B]

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