ENCORE BITS, LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 591
 
  
 
B24D TOOLS FOR GRINDING, BUFFING, OR SHARPENING 129
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8820441 Combination coring bit and drill bit using fixed cutter PDC cuttersOct 24, 08Sep 02, 14[E21B]
7878273 Ultra-hard drilling stabilizerNov 17, 08Feb 01, 11[E21B]
7849940 Drill bit having the ability to drill vertically and laterallyJun 27, 08Dec 14, 10[E21B]
7841427 Optimized central PDC cutter and methodJul 18, 08Nov 30, 10[E21B]
7757792 Method and apparatus for selectively leaching portions of PDC cutters already mounted in drill bitsJul 18, 08Jul 20, 10[E21B, B32B]
7712553 Method and apparatus for selectively leaching portions of PDC cutters used in drill bitsJul 18, 08May 11, 10[B24D, E21B, B32B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8327951 Drill bit having functional articulation to drill boreholes in earth formations in all directionsExpiredJun 22, 09Dec 11, 12[E21B]
2010/0101,747 Mold used in manufacture of drill bits and method of forming sameAbandonedNov 10, 09Apr 29, 10[B22D, B22C]
2010/0101,750 Two piece mold used in manufacture of PDC drill bits and method of using sameAbandonedOct 24, 08Apr 29, 10[B21K, B22D]
2010/0011,673 Method and apparatus for selectively leaching portions of PDC cutters through templates formed in mechanical shields placed over the cuttersAbandonedJul 18, 08Jan 21, 10[B01J, B24D]
2009/0038,442 Method and apparatus for retaining polycrystalline diamond cutters in a drill bit body of matrix or steelAbandonedAug 07, 08Feb 12, 09[B21K]

Top Inventors for This Owner

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