du Castel; Bertrand

Patent Applications and Registrations

Patent applications and USPTO patent grants for du Castel; Bertrand.The latest application filed is for "systems and methods for using stoneley waves for bottom-hole proximity detection".

Company Profile

3.12.9

du Castel; Bertrand - Austin TX

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Systems and methods for using Stoneley waves for bottom-hole proximity detection Grant 10,859,723 - du Castel , et al. December 8, 2	2020-12-08
Borehole casing deployment detection Grant 10,648,296 - du Castel , et al.	2020-05-12
Systems And Methods For Using Stoneley Waves For Bottom-hole Proximity Detection App 20190146114 - du Castel; Bertrand ; et al.	2019-05-16
Borehole Casing Deployment Detection App 20170234114 - du Castel; Bertrand ; et al.	2017-08-17
Determining drill string status in a wellbore Grant 9,416,646 - Du Castel , et al. August 16, 2	2016-08-16
System and method for secure downhole intelligent completions Grant 9,235,838 - Gerardi , et al. January 12, 2	2016-01-12
System and method for automating exploration or production of subterranean resource Grant 8,606,734 - Du Castel , et al. December 10, 2	2013-12-10
Determining Drill String Status in A Wellbore App 20130124096 - Du Castel; Bertrand ; et al.	2013-05-16
Voice activated smart card Grant 8,266,451 - Leydier , et al. September 11, 2	2012-09-11
System And Method For Determining Drilling Activity App 20110166789 - Barrow; Harry ; et al.	2011-07-07
System And Method For Automating Exploration Or Production Of Subterranean Resource App 20110155462 - Du Castel; Bertrand ; et al.	2011-06-30
Enforcing time-based transaction policies on devices lacking independent clocks Grant 7,926,096 - Ali , et al. April 12, 2	2011-04-12
System And Method For Secure Downhole Intelligent Completions App 20080162357 - Gerardi; Paul D. ; et al.	2008-07-03
Enforcing time-based transaction policies on devices lacking independent clocks App 20070058812 - Ali; Asad Mahboob ; et al.	2007-03-15
Smart card system having asynchronous communication with the smart card operating either as master or slave Grant 7,127,529 - Montgomery , et al. October 24, 2	2006-10-24
Metrology device with programmable smart card Grant 6,591,229 - Pattinson , et al. July 8, 2	2003-07-08
System and method for filtering content App 20030110272 - du Castel, Bertrand ; et al.	2003-06-12
Voice activated smart card App 20030046554 - Leydier, Robert A. ; et al.	2003-03-06
System and method for an ISO7816 complaint smart card to become master over a terminal Grant 6,157,966 - Montgomery , et al. December 5, 2	2000-12-05

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