Pritchard; Daryl L.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Pritchard; Daryl L..The latest application filed is for "expandable apparatus and related methods".

Company Profile

0.11.14

Pritchard; Daryl L. - Shenandoah 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
Expandable Apparatus And Related Methods App 20130087386 - Radford; Steven R. ; et al.	2013-04-11
Method and apparatus for collecting drill bit performance data Grant 8,100,196 - Pastusek , et al. January 24, 2	2012-01-24
Method and apparatus for collecting drill bit performance data Grant 7,987,925 - Pastusek , et al. August 2, 2	2011-08-02
Method And Apparatus For Collecting Drill Bit Performance Data App 20110024192 - Pastusek; Paul E. ; et al.	2011-02-03
Method and apparatus for collecting drill bit performance data Grant 7,849,934 - Pastusek , et al. December 14, 2	2010-12-14
Rfid Smart Box App 20090303003 - Pritchard; Daryl L. ; et al.	2009-12-10
Method and apparatus for collecting drill bit performance data Grant 7,604,072 - Pastusek , et al. October 20, 2	2009-10-20
Expandable reamer apparatus for enlarging boreholes while drilling Grant 7,594,552 - Radford , et al. September 29, 2	2009-09-29
Method And Apparatus For Collecting Drill Bit Performance Data App 20090194332 - Pastusek; Paul E. ; et al.	2009-08-06
Expandable reamer apparatus for enlarging subterranean boreholes and methods of use Grant 7,549,485 - Radford , et al. June 23, 2	2009-06-23
Method and apparatus for collecting drill bit performance data Grant 7,510,026 - Pastusek , et al. March 31, 2	2009-03-31
Method and apparatus for collecting drill bit performance data Grant 7,506,695 - Pastusek , et al. March 24, 2	2009-03-24
Method and apparatus for collecting drill bit performance data Grant 7,497,276 - Pastusek , et al. March 3, 2	2009-03-03
Expandable Reamer Apparatus For Enlarging Boreholes While Drilling App 20080110678 - Radford; Steven R. ; et al.	2008-05-15
Method And Apparatus For Collecting Drill Bit Performance Data App 20080066959 - Pastusek; Paul E. ; et al.	2008-03-20
Method And Apparatus For Collecting Drill Bit Performance Data App 20080060848 - Pastusek; Paul E. ; et al.	2008-03-13
Method And Apparatus For Collecting Drill Bit Performance Data App 20080065331 - Pastusek; Paul E. ; et al.	2008-03-13
Expandable reamer apparatus for enlarging boreholes while drilling and methods of use Grant 7,308,937 - Radford , et al. December 18, 2	2007-12-18
Method and apparatus for collecting drill bit performance data App 20070272442 - Pastusek; Paul E. ; et al.	2007-11-29
Expandable reamer apparatus for enlarging boreholes while drilling and methods of use App 20070017708 - Radford; Steven R. ; et al.	2007-01-25
Method and apparatus for collecting drill bit performance data App 20060272859 - Pastusek; Paul E. ; et al.	2006-12-07
Expandable reamer apparatus for enlarging boreholes while drilling and methods of use Grant 7,036,611 - Radford , et al. May 2, 2	2006-05-02
Expandable reamer apparatus for enlarging subterranean boreholes and methods of use App 20050145417 - Radford, Steven R. ; et al.	2005-07-07
Expandable reamer apparatus for enlarging boreholes while drilling and methods of use App 20040134687 - Radford, Steven R. ; et al.	2004-07-15

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