EPIROC DRILLING TOOLS LLC

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 2571
 
  
 
B23B TURNING; BORING 151
 
  
 
B60G VEHICLE SUSPENSION ARRANGEMENTS 150
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS149

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0322,724 ROTARY DRILL BITDec 14, 12Nov 12, 15[E21B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9822589 Rotary drill bit air/water separatorDec 05, 14Nov 21, 17[E21B, B01D]
9422771 Reverse circulation bit assemblyOct 17, 12Aug 23, 16[E21B]
9133667 Drill bit for boring earth and other hard materialsApr 25, 12Sep 15, 15[E21B]
8844656 Seal assembly for a rotary earth bitMar 16, 09Sep 30, 14[E21B, F16J]
8839886 Drill bit with recessed centerNov 09, 10Sep 23, 14[E21B]
8763728 Percussion assisted rotary earth bit and method of operating the sameDec 20, 10Jul 01, 14[E21B]
8627903 Percussion assisted rotary earth bit and method of operating the sameDec 10, 12Jan 14, 14[E21B]
8550189 Drive pin supportDec 31, 09Oct 08, 13[E21B]
8439136 Drill bit for earth boringApr 02, 10May 14, 13[E21B]
8353369 Percussion assisted rotary earth bit and method of operating the sameAug 05, 09Jan 15, 13[E21B]

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Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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