REEDHYCALOG UK LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 5149
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM9148
 
  
 
B21K MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS 518
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 398
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 285
 
  
 
G06G ANALOGUE COMPUTERS 251
 
  
 
B23B TURNING; BORING 151
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 192
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
B24D TOOLS FOR GRINDING, BUFFING, OR SHARPENING 129

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8721752 PDC cutter with stress diffusing structuresAug 14, 08May 13, 14[B24D, E21B]
7568534 Dual-edge working surfaces for polycrystalline diamond cutting elementsFeb 26, 08Aug 04, 09[E21B]
7457734 Representation of whirl in fixed cutter drill bitsOct 12, 06Nov 25, 08[G06G]
7318492 Rotary drill bitAug 16, 05Jan 15, 08[E21B]
6878447 Polycrystalline diamond partially depleted of catalyzing materialJun 20, 03Apr 12, 05[B32B]
6861098 Polycrystalline diamond partially depleted of catalyzing materialOct 01, 03Mar 01, 05[B05D]
6861137 High volume density polycrystalline diamond with working surfaces depleted of catalyzing materialJul 01, 03Mar 01, 05[B32B]
6797326 Method of making polycrystalline diamond with working surfaces depleted of catalyzing materialOct 09, 02Sep 28, 04[B05D]
6749033 Polycrystalline diamond partially depleted of catalyzing materialNov 01, 02Jun 15, 04[E21B]
6739214 Polycrystalline diamond partially depleted of catalyzing materialNov 01, 02May 25, 04[B21K, B32B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0142,267 Multi-Edge Working Surfaces for Polycrystalline Diamond Cutting ElementsAbandonedFeb 27, 08Jun 19, 08[E21B]
7308955 Stabilizer arrangementExpiredMar 20, 06Dec 18, 07[E21B]
2006/0260,845 Stable Rotary Drill BitAbandonedMay 10, 06Nov 23, 06[E21B]
2006/0086,540 Dual-Edge Working Surfaces for Polycrystalline Diamond Cutting ElementsAbandonedOct 14, 05Apr 27, 06[E21B]
2004/0007,393 Cutter and method of manufacture thereofAbandonedJul 12, 02Jan 15, 04[E21B]
2004/0007,394 Cutter and method of manufacture thereofAbandonedAug 21, 02Jan 15, 04[E21B]
2003/0183,426 Polycrystalline Material Element with Improved Wear Resistance And Methods of Manufacture ThereofAbandonedMar 21, 03Oct 02, 03[E21B]
5819862 Downhole components for use in subsurface drillingExpiredMar 19, 96Oct 13, 98[E21B]
5740874 Cutting elements for rotary drill bitsExpiredApr 19, 96Apr 21, 98[E21B]
5720357 Cutter assemblies for rotary drill bitsExpiredMar 06, 96Feb 24, 98[E21B]
5697461 Rotary drill bit having a non-rotating gauge sectionExpiredOct 10, 95Dec 16, 97[E21B]
5669271 Elements faced with superhard materialExpiredDec 08, 95Sep 23, 97[B21K]
5598750 Elements faced with superhard materialExpiredNov 09, 94Feb 04, 97[E21B]
5531281 Rotary drilling toolsExpiredJul 14, 94Jul 02, 96[E21B]
5421425 Cutting elements for rotary drill bitsExpiredJul 01, 94Jun 06, 95[E21B]
5135061 Cutting elements for rotary drill bitsExpiredAug 03, 90Aug 04, 92[E21B]
5111895 Cutting elements for rotary drill bitsExpiredApr 16, 90May 12, 92[E21B]
5025874 Cutting elements for rotary drill bitsExpiredApr 04, 89Jun 25, 91[E21B]
4995887 Cutting elements for rotary drill bitsExpiredApr 04, 89Feb 26, 91[B24B]
4956238 Manufacture of cutting structures for rotary drill bitsExpiredJun 09, 88Sep 11, 90[B32B]

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