LONGYEAR TM, 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 8235
 
  
 
1503 AGRICULTURAL MACHINERY1415
 
  
 
B24D TOOLS FOR GRINDING, BUFFING, OR SHARPENING 723
 
  
 
C22C ALLOYS 567
 
  
 
1509 MACHINE TOOLS, ABRADING AND FOUNDING MACHINERY425
 
  
 
B23B TURNING; BORING 349
 
  
 
2301 FLUID DISTRIBUTION EQUIPMENT347
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 250
 
  
 
B23Q DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING 238
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM2155

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0087,693 FIBER-CONTAINING DIAMOND-IMPREGNATED CUTTING TOOLS AND METHODS OF FORMING AND USING SAMEDec 14, 16Mar 30, 17[B24D, C22C, B23D]
2016/0348,443 INFILTRATED DIAMOND WEAR RESISTANT BODIES AND TOOLSAug 09, 16Dec 01, 16[E21B, B24D]
2016/0201,398 Drilling Tools Having Matrices With Carbide-Forming Alloys, And Methods Of Making And Using SameJan 12, 16Jul 14, 16[E21B, B24D]
2016/0145,946 DRILL BITS HAVING FLUSHING AND SYSTEMS FOR USING SAMEJan 29, 16May 26, 16[E21B]
2015/0376,965 CORE BARREL SUPPORT SYSTEM AND METHODS OF USING SAMEJul 02, 15Dec 31, 15[E21B]
2015/0330,154 FULLY INFILTRATED ROTARY DRILL BITMay 13, 15Nov 19, 15[E21B]
2015/0184,465 No-Waterway Or Single Waterway Drill Bits And Systems And Methods For Using SameDec 30, 14Jul 02, 15[E21B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9903165 Drill bits with axially-tapered waterwaysJun 29, 15Feb 27, 18[E21B]
9784038 High-productivity drill bitsSep 24, 13Oct 10, 17[E21B]
9689222 Core drilling tools with external fluid pathwaysSep 29, 14Jun 27, 17[E21B]
9637980 Diamond impregnated bit with aggressive face profileJun 05, 15May 02, 17[E21B]
9546524 Handling and recovery devices for tubular members and associated methodsFeb 27, 14Jan 17, 17[E21B]
9540883 Fiber-containing diamond-impregnated cutting tools and methods of forming and using sameMar 28, 14Jan 10, 17[B22F, E21B, C22C, B32B]
9528337 Up-hole bushing and core barrel head assembly comprising sameMar 14, 13Dec 27, 16[E21B]
9506298 Drill bits having blind-hole flushing and systems for using sameNov 20, 13Nov 29, 16[E21B]
9500036 Single-waterway drill bits and systems for using sameApr 07, 14Nov 22, 16[E21B]
9446503 High-strength, high-hardness binders and drilling tools formed using the sameDec 10, 14Sep 20, 16[B24D, E21B, C22C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0032,689 DRILL ROD GUARD AND SYSTEMS AND METHODS OF USING SAMEAbandonedMar 14, 14Feb 04, 16[E21B]
2014/0166,953 HOIST LIMITING SYSTEMS AND METHODSAbandonedDec 18, 12Jun 19, 14[B66D]
8662204 Core barrel restraintExpiredMay 25, 11Mar 04, 14[E21B]
8657894 Use of resonant mixing to produce impregnated bitsExpiredOct 18, 11Feb 25, 14[C09K, C09C, B24D]
2014/0000,920 SLIDE HAMMER DEVICE AND METHODS OF USING SAMEAbandonedJun 28, 12Jan 02, 14[B25D]
8616303 Helical drilling apparatus, systems, and methodsExpiredFeb 09, 11Dec 31, 13[E21B]
8556004 Bottom preventer for use in a drilling systemExpiredDec 03, 10Oct 15, 13[E02D, E21B]
2013/0220,615 INTERNAL TUBING CUTTERAbandonedFeb 23, 12Aug 29, 13[E21B]
8517438 Pipe lifting and handling toolExpiredFeb 16, 11Aug 27, 13[B65G]
2013/0186,662 Progressive Dual-Shaft Drill Head and Systems and Methods ThereofAbandonedDec 28, 12Jul 25, 13[E21B]
2013/0167,677 Over Center Drill Head Gear Shifting SystemAbandonedDec 31, 12Jul 04, 13[F16H]
2013/0140,839 SELF-CENTERING CLAMPING DEVICEAbandonedNov 16, 12Jun 06, 13[B66C]
2013/0098,691 HIGH-STRENGTH, HIGH-HARDNESS BINDERS AND DRILLING TOOLS FORMED USING THE SAMEAbandonedOct 25, 11Apr 25, 13[E21B, B24D, C22C]
8408328 Methods of controllling hydraulic motorsExpiredMay 07, 12Apr 02, 13[E21B]
8371397 Feed mechanism for drilling systemsExpiredDec 19, 08Feb 12, 13[B23Q, B23B, F16H, E21B]
2012/0305,317 SYSTEMS AND METHODS FOR LIMITING WINCH OVERRUNAbandonedMay 31, 12Dec 06, 12[E21B]
2012/0261,189 UNDISTURBED CORE SAMPLERAbandonedApr 13, 12Oct 18, 12[E21B]
8172002 Methods of controlling hydraulic motorsExpiredNov 14, 11May 08, 12[E21B]
8127864 Hydro-percussive mechanisms for drilling systemsExpiredNov 23, 09Mar 06, 12[E21B]
8113299 Drill mast articulation assemblyExpiredFeb 08, 11Feb 14, 12[E21B]

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