Inventor

Douglas J. Patterson

Inventor

Spring, TX, US

Overview

2003–2021

Patent span

Physics

Primary field (CPC G)

Patents· 45 as inventor

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

G01Vprimary

G01VGeophysics54%

E21BEarth or rock drilling27%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general5%

G01NInvestigating or analysing materials by determining their chemical or physical properties5%

G16ZInformation and communication technology [ict] specially adapted for specific application fields, not otherwise provided for3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

G01BMeasuring length, thickness or similar linear dimensions1%

G10KSound-producing devices1%

PatentTitleYear

11,066,920Guided wave attenuation well logging excitation optimizer based on waveform modeling2021 10,605,944Formation acoustic property measurement with beam-angled transducer array2020 10,557,959Evaluation of physical properties of a material behind a casing utilizing guided acoustic waves2020 10,436,018Downhole electromagnetic acoustic transducer sensors2019 10,416,330Composite transducer for downhole ultrasonic imaging and caliper measurement2019 10,302,792Detection of high incident reflective boundaries using near-field shear waves2019 10,222,501Televiewer image wood-grain reduction techniques2019 10,185,052Constrained backscatter gamma ray casing and cement inspection tool2019 9,885,795'Acoustic wave imaging of formations'2018 9,670,770'Fracture evaluation through cased boreholes'2017 9,273,545'Use of Lamb and SH attenuations to estimate cement Vp and Vs in cased borehole'2016 9,030,911'Method and system for delineating a second wellbore from a first wellbore'2015 8,944,183'Low frequency formation shear slowness from drilling noise derived quadrupole array data'2015 8,913,461'Televiewer image wood-grain reduction techniques'2014 8,880,348'Radon migration of acoustic data'2014 8,794,062'Early kick detection in an oil and gas well'2014 8,634,272'Televiewer image wood-grain reduction techniques'2014 8,576,659'Method and apparatus for acoustic impedance and P-wave anisotropy measurements'2013 8,456,952'Curve-fitting technique for determining dispersion characteristics of guided elastic waves'2013 8,379,483'Method and apparatus for determining radial shear velocity variation from dipole acoustic logging'2013 8,261,873'Electromagnetic linear drive source for logging-while-drilling/wireline acoustic applications'2012 8,061,206'Casing thickness evaluation method'2011 8,004,932'Identification of stress in formations using angles of fast and slow dipole waves in borehole acoustic logging'2011 7,970,544'Method and apparatus for characterizing and estimating permeability using LWD Stoneley-wave data'2011 7,911,877'Active noise cancellation through the use of magnetic coupling'2011 7,773,454'Method and apparatus for cement evaluation using multiple acoustic wave types'2010 7,681,450'Casing resonant radial flexural modes in cement bond evaluation'2010 7,672,784'Using statistics of a fitting function for data-driven dispersion slowness processing'2010 7,663,969'Use of Lamb waves in cement bond logging'2010 7,650,963'Acoustic isolator for well logging system'2010 7,646,673'Wave analysis using phase velocity processing'2010 7,639,562'Active noise cancellation through the use of magnetic coupling'2009 7,633,834'VSP pattern recognition in absolute time'2009 7,626,886'P-wave anisotropy determination using borehole measurements'2009 7,525,872'Method and apparatus for cement bond evaluation using transversely polarized shear waves'2009 7,492,664'Method for processing acoustic reflections in array data to image near-borehole geological structure'2009 7,311,143'Method and apparatus for generation of acoustic shear waves through casing using physical coupling of vibrating magnets'2007 7,150,317'Use of electromagnetic acoustic transducers in downhole cement evaluation'2006 6,985,086'Method and apparatus for LWD shear velocity measurement'2006 6,930,616'Method and apparatus for LWD shear velocity measurement'2005 6,909,666'Method and apparatus for generating acoustic signals for LWD shear velocity measurement'2005 6,850,168'Method and apparatus for LWD shear velocity measurement'2005 6,820,716'Acoustic isolator for well logging system'2004 6,769,497'Use of axial accelerometer for estimation of instantaneous ROP downhole for LWD and wireline applications'2004 6,614,360'Measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2019Patents assigned to BAKER HUGHES INC (40)· patent assignee history

2003–2006Based in Houston, TX, US· patent location history

2004–2019Based in Spring, TX, US· patent location history

2011–2020Patents assigned to PATTERSON DOUGLAS J (14)· patent assignee history

2011–2014Patents assigned to BOLSHAKOV ALEXEI (2)· patent assignee history

2013–2015Patents assigned to TANG XIAO MING (5)· patent assignee history

2018–2021Patents assigned to BAKER HUGHES A GE CO LLC (9)· patent assignee history

2019–2021Based in Magnolia, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAKER HUGHES INC	40	2003–2019
PATTERSON DOUGLAS Jself	14	2011–2020
BAKER HUGHES A GE CO LLC	9	2018–2021
TANG XIAO MING	5	2013–2015
BOLSHAKOV ALEXEI	2	2011–2014

Locations

Location	Patents	Span
Spring, Texas, US	34	2004–2019
Magnolia, Texas, US	6	2019–2021
Houston, Texas, US	5	2003–2006