REED HYCALOG OPERATING LP

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 492
 
  
 
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 1100

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6517902 Methods of treating preform elementsApr 06, 01Feb 11, 03[C23C]
6484824 Failure indicator for rolling cutter drill bitJul 30, 01Nov 26, 02[E21B]
5988302 Hardmetal facing for earth boring drill bitJul 31, 97Nov 23, 99[E21B]
5931241 Hydrostatic thrust face lubrication systemJan 10, 97Aug 03, 99[E21B]
5372210 Rolling cutter drill bitsOct 12, 93Dec 13, 94[E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4848476 Drill bit having offset roller cutters and improved nozzlesExpiredFeb 29, 88Jul 18, 89[E21B]
4741406 Drill bit having offset roller cutters and improved nozzlesExpiredSep 15, 86May 03, 88[E21B]
4688647 Drill bit having a failure indicatorExpiredAug 11, 86Aug 25, 87[E21B]
4676324 Drill bit and cutter thereforExpiredJan 29, 86Jun 30, 87[E21B]
4660659 Drag type drill bitExpiredAug 06, 85Apr 28, 87[E21B]
4657093 Rolling cutter drill bitExpiredFeb 03, 82Apr 14, 87[E21B]
4640375 Drill bit and cutter thereforExpiredFeb 08, 84Feb 03, 87[E21B]
4619534 Roller cutter drill bit having a texturized seal memberExpiredSep 12, 84Oct 28, 86[F16C, E21B, F16J]
4611673 Drill bit having offset roller cutters and improved nozzlesExpiredNov 21, 83Sep 16, 86[E21B]
4599921 Method and apparatus for machining a workpieceExpiredNov 29, 84Jul 15, 86[B23B]
4595067 Rotary drill bit, parts therefor, and method of manufacturing thereofExpiredJan 17, 84Jun 17, 86[E21B]
4582149 Drill bit having replaceable nozzles directing drilling fluid at a predetermined angleExpiredOct 31, 83Apr 15, 86[E21B]
4570725 Drill bit cutterExpiredJan 31, 84Feb 18, 86[E21B]
4558753 Drag bit and cuttersExpiredFeb 22, 83Dec 17, 85[E21B]
4558754 Drill bit having angled nozzlesExpiredJan 23, 84Dec 17, 85[E21B]
4554986 Rotary drill bit having drag cutting elementsExpiredJul 05, 83Nov 26, 85[E21B]
4548280 Drill bit having a failure indicatorExpiredFeb 15, 84Oct 22, 85[E21B]
4546837 Drill bit having angled nozzles for improved bit and well bore cleaningExpiredJun 28, 84Oct 15, 85[E21B]
4542798 Nozzle assembly for an earth boring drill bitExpiredJan 31, 84Sep 24, 85[E21B]
4538690 PDC cutter and bitExpiredFeb 22, 83Sep 03, 85[E21B]

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