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National Oilwell Dht L p patents

Recent patent applications related to National Oilwell Dht L p. National Oilwell Dht L p is listed as an Agent/Assignee. Note: National Oilwell Dht L p may have other listings under different names/spellings. We're not affiliated with National Oilwell Dht L p, we're just tracking patents.

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Date National Oilwell Dht L p patents (updated weekly) - BOOKMARK this page
06/15/17Drilling systems and hybrid drill bits for drilling in a subterranean formation and methods relating thereto
03/23/17Wellsite hardfacing with distributed hard phase and using same
02/16/17Fixed cutter drill bit with flow guide
02/02/17Downhole drill bit cutting element with chamfered ridge
06/16/16Gauge for bent housing motor drill bit
04/21/16Hybrid rolling cone drill bits and methods for manufacturing same
11/05/15Downhole drilling assembly with motor powered hammer and using same
10/22/15Fixed cutter drill bit cutter elements including hard cutting tables made from cvd synthetic diamonds
08/20/15Downhole mills and improved cutting structures
07/09/15Downhole activation assembly with offset bore and using same
06/25/15In-situ boron doped pdc element
06/11/15Matrix fixed cutter drill bits and methods for manufacturing same
05/14/15Multilayered coating for downhole tools with enhanced wear resistance and acidic corrosion resistance
05/07/15Hard-facing for downhole tools and matrix bit bodies with enhanced wear resistance and fracture toughness
03/19/15Polycrystalline diamond cutting element
02/19/15Drilling systems and multi-faced drill bit assemblies
02/05/15Downhole shock assembly and using same
01/29/15Downhole activation assembly with sleeve valve and using same
01/22/15Downhole measurement assembly, tool and method
08/07/14Downhole activation assembly and using same
06/26/14Drilling systems and fixed cutter bits with adjustable depth-of-cut to control torque-on-bit
05/29/14Apparatus and retaining inserts of a rolling cone drill bit
05/22/14Hybrid rolling cone drill bits and methods for manufacturing same
07/18/13Preparation of nanocrystalline diamond coated diamond particles and applications thereof
06/27/13Downhole cutting tool
04/18/13Dispersion of hardphase particles in an infiltrant
01/10/13Flowbore mounted sensor package
12/13/12Optimization of drill bit cutting structure
08/02/12Drill bit with enhanced hydraulics and erosion-shield cutting teeth
06/21/12In-situ boron doped pdc element
04/26/12Polycrystalline diamond cutting element
03/15/12Downhole sensor assembly and using same
01/26/12Polycrystalline diamond cutting element and using same
07/14/11Sacrificial catalyst polycrystalline diamond element

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This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. is not affiliated or associated with National Oilwell Dht L p in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for National Oilwell Dht L p with additional patents listed. Browse our Agent directory for other possible listings. Page by