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Cnpc Usa Corp
Cnpc Usa Corporation

Cnpc Usa Corp patents

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

ARCHIVE: New 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | Cnpc Usa Corp-related inventors

Date Cnpc Usa Corp patents (updated weekly) - BOOKMARK this page
05/25/17Thinner for oil-based drilling fluids
05/25/17Thinner for oil-based drilling fluids
04/13/17Crosslinked high molecular weight polymers for use in water-based drilling fluids
03/02/17Convex ridge type non-planar cutting tooth and diamond drill bit
06/05/14Vibrational tool with rotating engagement surfaces and method
06/05/14Vibrational tool with tool axis rotational mass and method
06/05/14Drill bit housing vibrator and method
05/18/17Method for a fracturing fluid system at high temperatures
04/20/17High density and high temperature emulsifier for use in an oil based drilling fluid system
04/07/16Polycrystalline diamond compact cutter
04/07/16Method of testing a polycrystalline diamond compact cutter
10/29/15System and setting a completion tool
07/30/15System and a downhole logging tool with an array of paired receiver antennas
05/21/15Ball seat system
06/26/14Millable bridge plug system
06/19/14Millable bridge plug system
06/19/14Millable bridge plug system
06/12/14Pressure controlled multi-shift frac sleeve system

ARCHIVE: New 2017 2016 2015 2014 2013 2012 2011 2010 2009


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 Cnpc Usa Corp 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 Cnpc Usa Corp with additional patents listed. Browse our Agent directory for other possible listings. Page by