Inventor

James H. Dudley

Inventor
Spring, TX, US

Overview

26→
Patents
2001–2021
Patent span
Physics
Primary field (CPC G)

Patents· 26 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

E21Bprimary
E21BEarth or rock drilling32%
G01VGeophysics16%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
H04LTransmission of digital information, e.g. telegraphic communication6%
G06FElectric digital data processing5%
G01CMeasuring distances, levels or bearings3%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock3%
H01LSemiconductor devices3%
H02NElectric machines not otherwise provided for3%
H10NElectric solid-state devices not otherwise provided for3%
PatentTitleYear
11,028,716Leaf seal202110,472,956Mud pulse telemetry20199,948,213Magnetostrictive power supply for bottom hole assembly with rotation-resistant housing20189,638,033'Mud pulse telemetry'20179,556,680'Single trip liner setting and drilling assembly and methods'20179,431,928'Power production in a completed well using magnetostrictive materials'20169,303,506'Drill string tubular with a detection system mounted therein'20169,003,862'Downhole instrument calibration during formation survey'20158,891,071'Apparatus and method for detecting pressure signals'20148,880,349'Mud pulse telemetry'20148,689,875'Formation treatment using electromagnetic radiation'20148,610,896'Apparatus and method for detecting pressure signals'20138,528,381'Downhole instrument calibration during formation survey'20137,999,695'Surface real-time processing of downhole data'20117,966,875'Methods and apparatus for measuring formation properties'20117,444,946'Material management apparatus, systems, and methods'20087,407,020'Rotating systems associated with drill pipe'20087,219,747'Providing a local response to a local condition in an oil well'20077,204,324'Rotating systems associated with drill pipe'20077,204,308'Borehole marking devices and methods'20077,116,182'Method and system for downhole clock having compensation'20066,909,667'Dual channel downhole telemetry'20056,825,659'Method and apparatus for nuclear magnetic resonance measuring while drilling'20046,583,621'Method and apparatus for nuclear magnetic resonance measuring while drilling'20036,362,619'Method and apparatus for nuclear magnetic resonance measuring while drilling'20026,268,726'Method and apparatus for nuclear magnetic resonance measuring while drilling'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2003Patents assigned to NUMAR CORP (3)· patent assignee history
2001–2004Based in Downingtown, PA, US· patent location history
2005–2014Patents assigned to HALLIBURTON ENERGY SERV INC (14)· patent assignee history
2005–2019Based in Spring, TX, US· patent location history
2013–2018Patents assigned to DUDLEY JAMES H (6)· patent assignee history
2013–2016Patents assigned to GOLLA CHRISTOPHER ALLEN (2)· patent assignee history
2015–2019Patents assigned to HALLIBURTON ENERGY SERVICES INC (6)· patent assignee history
2021Based in Rexford, NY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HALLIBURTON ENERGY SERV INC142005–2014
DUDLEY JAMES Hself62013–2018
HALLIBURTON ENERGY SERVICES INC62015–2019
NUMAR CORP32001–2003
GOLLA CHRISTOPHER ALLEN22013–2016
Locations
LocationPatentsSpan
Spring, Texas, US212005–2019
Downingtown, Pennsylvania, US42001–2004
Rexford, New York, US12021