Acoustic source for generating an acoustic beam

Vu, Cung Khac; Sinha, Dipen N.; Pantea, Cristian

Advanced Search OptionsAdvanced Search queries use a traditional Term Search. For more info, see our FAQ.

All Fields:

Patent Title:

Abstract:

Assignee:

Inventor(s):

Patent Number:

Patent Classification (CPC):

All Classifications
A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

More Options ...

Title: Acoustic source for generating an acoustic beam

Abstract

An acoustic source for generating an acoustic beam includes a housing; a plurality of spaced apart piezo-electric layers disposed within the housing; and a non-linear medium filling between the plurality of layers. Each of the plurality of piezoelectric layers is configured to generate an acoustic wave. The non-linear medium and the plurality of piezo-electric material layers have a matching impedance so as to enhance a transmission of the acoustic wave generated by each of plurality of layers through the remaining plurality of layers.

Inventors:: Vu, Cung Khac; Sinha, Dipen N.; Pantea, Cristian

Issue Date:: Tue May 31 00:00:00 EDT 2016

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1255130

Patent Number(s):: 9354346

Application Number:: 13/836,718

Assignee:: LOS ALAMOS NATIONAL SECURITY, LLC (Los Alamos, NM)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL B06B - METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

Show more

B - PERFORMING OPERATIONS B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL B06B - METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL
B06B1/0688 - {with foil-type piezo-electric elements, e.g. PVDF}

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
G01V1/40 - specially adapted for well-logging
G01V1/42 - using generators in one well and receivers elsewhere or vice versa
G01V1/50 - Analysing data

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04R - LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS
H04R17/00 - Piezo-electric transducers

Show less

DOE Contract Number:: AC52-06NA25396

Resource Type:: Patent

Resource Relation:: Patent File Date: 2013 Mar 15

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats


                    Vu, Cung Khac, Sinha, Dipen N., and Pantea, Cristian. Acoustic source for generating an acoustic beam.  United States: N. p., 2016. 
        Web.

Copy to clipboard


                    Vu, Cung Khac, Sinha, Dipen N., & Pantea, Cristian. Acoustic source for generating an acoustic beam.  United States.

Copy to clipboard


                    Vu, Cung Khac, Sinha, Dipen N., and Pantea, Cristian. Tue .  
        "Acoustic source for generating an acoustic beam".  United States.  https://www.osti.gov/servlets/purl/1255130.

Copy to clipboard


                    
@article{osti_1255130,

  title        = {Acoustic source for generating an acoustic beam},

  author       = {Vu, Cung Khac and Sinha, Dipen N. and Pantea, Cristian},

  abstractNote = {An acoustic source for generating an acoustic beam includes a housing; a plurality of spaced apart piezo-electric layers disposed within the housing; and a non-linear medium filling between the plurality of layers. Each of the plurality of piezoelectric layers is configured to generate an acoustic wave. The non-linear medium and the plurality of piezo-electric material layers have a matching impedance so as to enhance a transmission of the acoustic wave generated by each of plurality of layers through the remaining plurality of layers.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue May 31 00:00:00 EDT 2016},

  month        = {Tue May 31 00:00:00 EDT 2016}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Parametric Acoustic Array
journal, April 1963

Westervelt, Peter J.
The Journal of the Acoustical Society of America, Vol. 35, Issue 4
https://doi.org/10.1121/1.1918525

Standing Wave Acoustic Parametric Source
patent, March 1975

Rogers, Peter H.; Van Buren, Arnie Lee
US Patent Document 3,872,421
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3872421

Standing Wave Acoustic Parametric Source
patent, March 1975

Rogers, Peter H.; Van Buren, Arnie Lee
US Patent Document 3,872,421
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3872421

Highly-directional acoustic source for use in borehole surveys
patent, August 1976

Cowles, Christopher S.
US Patent Document 3,974,476
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3974476

Target location systems
patent, February 1981

Johnson, Phillip
US Patent Document 4,253,166
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4253166

Apparatus for acoustically investigating a borehole
patent, May 1983

Havira, R. Mark
US Patent Document 4,382,290
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4382290

Constant beamwidth frequency independent acoustic antenna
patent, October 1984

Sternberg, Robert L.
US Patent Document 4,480,324
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4480324

Directional long array for logging vertical boundaries
patent, April 1985

Ruehle, William H.
US Patent Document 4,509,149
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4509149

Ultrasonic surface texture measurement apparatus and method
patent, March 1987

Siegfried, II, Robert W.
US Patent Document 4,646,565
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4646565

Articulated transducer pad assembly for acoustic logging tool
patent, July 1988

Linyaev, Eugene J.; Swanson, Roy E.
US Patent Document 4,757,873
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4757873

Method for determining formation permeability by comparing measured tube waves with formation and borehole parameters
patent, January 1989

Hornby, Brian E.
US Patent Document 4,797,859
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4797859

Control device for a starter valve of a turbine aero-engine
patent, February 1989

Mouton, Pierre C.
US Patent Document 4,805,873
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4805873

Borehole logging methods for detection and imaging of formation structural features
patent, March 1989

Hornby, Brian E.; Wiggins, Ralphe
US Patent Document 4,817,059
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4817059

Borehole logging method for fracture detection and evaluation
patent, May 1989

Hornby, Brian E.; Johnson, David L.
US Patent Document 4,831,600
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4831600

Methods for determining formation and borehole parameters via two-dimensional tomographic reconstruction of formation slowness
patent, January 1992

Hornby, Brian E.
US Patent Document 5,081,611
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5081611

Bed continuity detection and analysis using crosswell seismic data
patent, September 1992

Chon, Yu Taik
US Patent Document 5,144,590
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5144590

Measurement of formation characteristics using acoustic borehole tool having sources of different frequencies
patent, May 1996

D'Angelo, Ralph M.; Kimball, Christopher; Kostek, Sergio
US Patent Document 5,521,882
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5521882

Borehole apparatus and methods for measuring formation velocities as a function of azimuth, and interpretation thereof
patent, August 1996

Winkler, Kenneth W.
US Patent Document 5,544,127
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5544127

Method and apparatus for beam steering and bessel shading of conformal array
patent, June 1997

Schmidt, Mathew G.; Priest, John F.
US Patent Document 5,640,371
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5640371

Ground penetrating sonar
patent, February 1998

Earp, Ronald Lee
US Patent Document 5,719,823
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5719823

Cross-well connectivity mapping including separation of compressional and shear wave energy
patent, December 1999

Chon, Yu Taik; Turpening, Walter R.; Khan, Tawassul Ali
US Patent Document 6,009,043
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6009043

Active acoustic wall
patent, March 2000

Nishimura, Masaharu; Ohnishi, Keizo; Yasuda, Chiaki
US Patent Document 6,041,125
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6041125

Cross-well seismic mapping method for determining non-linear properties of earth formations between wellbores
patent, January 2001

Khan, Tawassul Ali
US Patent Document 6,175,536
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6175536

High resolution device and method for imaging concealed objects within an obscuring medium
patent, April 2001

Nelson, Robert Sigurd; Zach, Reuven D.
US Patent Document 6,216,540
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6216540

Ultrasonic diagnostic imaging of nonlinearly intermodulated and harmonic frequency components
patent, August 2002

Averkiou, Michalakis
US Patent Document 6,440,075
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6440075

Mapping subsurface fractures using nonlinearity measurements
patent, July 2003

Khan, Tawassul Ali
US Patent Document 6,597,632
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6597632

Mapping reservoir characteristics using earth's nonlinearity as a seismic attribute
patent, October 2003

Khan, Tawassul Ali
US Patent Document 6,631,783
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6631783

Active reduction of tool borne noise in a sonic logging tool
patent, December 2003

Pabon, Jahir
US Patent Document 6,671,224
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6671224

High efficiency parametric sonar
patent, March 2004

Ruffa, Anthony A.
US Patent Document 6,704,247
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6704247

Multimode synthesized beam transduction apparatus
patent, May 2004

Butler, John L.; Butler, Alexander L.
US Patent Document 6,734,604
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6734604

Baffled ring directional transducers and arrays
patent, July 2004

Brown, David Alan; Aronov, Boris
US Patent Document 6,768,702
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6768702

Method and apparatus for interferometry, spectral analysis, and three-dimensional holographic imaging of hydrocarbon accumulations and buried objects
patent, August 2005

Sansone, Stanley A.
US Patent Document 6,937,938
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6937938

Variable intensity memory gravel pack imaging apparatus and method
patent, June 2006

Flecker, Michael; Stephenson, Larry; Hampton, III, J. Thomas
US Patent Document 7,059,404
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7059404

Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications
patent, November 2007

Leggett, III, James V.; Dubinsky, Vladimir
US Patent Document 7,301,852
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7301852

Method for borehole measurement of formation properties
patent, December 2007

Zhou, Minyao; Thomann, Hans; Keller, Stuart R.
US Patent Document 7,310,580
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7310580

Acoustic transducers for tubulars
patent, December 2008

Garcia-Osuna, Fernando; Masson, Jean Pierre
US Patent Document 7,460,435
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7460435

Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications
patent, December 2008

Leggett, III, James V.; Dubinsky, Vladimir
US Patent Document 7,463,551
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7463551

Peizoelectric generator particularly for use with wellbore drilling equipment
patent, July 2010

Garcia-Osuna, Fernando
US Patent Document 7,762,354
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7762354

Methods and systems for acoustic waveform processing
patent, July 2010

Wu, Peter T.; Pabon, Jahir
US Patent Document 7,764,572
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7764572

Method and system for generating a beam of acoustic energy from a borehole, and applications thereof
patent, February 2012

Johnson, Paul A.; Ten Cate, James A.; Guyer, Robert
US Patent Document 8,116,167
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8116167

Monopole acoustic transmitter ring comprising piezoelectric material
patent, September 2015

Mickael, Medhat W.; Jones, Dale A.
US Patent Document 9,121,970
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9121970

Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications
patent-application, February 2005

Leggett, III, James V.; Dubinsky, Vladimir
US Patent Application 10/640240; 20050036403
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050036403

Method And System For Generating A Beam Of Acoustic Energy From A Borehole, And Applications Thereof
patent-application, December 2009

Johnson, Paul; Ten Cate, James; Guyer, Robert
US Patent Application 12/137980; 20090310441
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090310441

Device and Method for Generating a Beam of Acoustic Energy from Aborehole, and Application Thereof
patent-application, January 2010

Vu, Cung Khac; Sinha, Dipen N.; Pantea, Cristian
US Patent Application 12/166842; 20100002540
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100002540

Device and Method for Generating a Beam of Acoustic Energy from a Borehole and Applications Thereof
patent-application, April 2011

Vu, Cung Khac; Sinha, Dipen N.; Pantea, Cristian
US Patent Application 12/793407; 20110080803
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20110080803

Similar Records in DOE Patents and OSTI.GOV collections:

System and method for sonic wave measurements using an acoustic beam source

Patent Vu, Cung Khac; Sinha, Dipen N.; Pantea, Cristian

A method and system for investigating structure near a borehole are described herein. The method includes generating an acoustic beam by an acoustic source; directing at one or more azimuthal angles the acoustic beam towards a selected location in a vicinity of a borehole; receiving at one or more receivers an acoustic signal, the acoustic signal originating from a reflection or a refraction of the acoustic wave by a material at the selected location; and analyzing the received acoustic signal to characterize features of the material around the borehole.
Full Text Available
Resonance-enhanced compact nonlinear acoustic source of low frequency collimated beam for imaging applications in highly attenuating media

Patent Pantea, Cristian; Sinha, Dipen N.

Acoustic signal sources include acoustic resonators that include acoustic nonlinear materials. Acoustic signals at higher frequencies are mixed in the nonlinear materials to produce a lower frequency acoustic signal. Resonance provides increased efficiency in producing acoustic signals at difference frequencies corresponding to resonance frequencies. Higher frequency acoustic signals used in nonlinear mixing are preferably at frequencies corresponding to resonance frequencies as well.
Full Text Available
System and method for investigating sub-surface features of a rock formation with acoustic sources generating conical broadcast signals

Patent Vu, Cung Khac; Skelt, Christopher; Nihei, Kurt; ...

A method of interrogating a formation includes generating a conical acoustic signal, at a first frequency--a second conical acoustic signal at a second frequency each in the between approximately 500 Hz and 500 kHz such that the signals intersect in a desired intersection volume outside the borehole. The method further includes receiving, a difference signal returning to the borehole resulting from a non-linear mixing of the signals in a mixing zone within the intersection volume.
Full Text Available
System and method for investigating sub-surface features of a rock formation with acoustic sources generating coded signals

Patent Vu, Cung Khac; Nihei, Kurt; Johnson, Paul A; ...

A system and a method for investigating rock formations includes generating, by a first acoustic source, a first acoustic signal comprising a first plurality of pulses, each pulse including a first modulated signal at a central frequency; and generating, by a second acoustic source, a second acoustic signal comprising a second plurality of pulses. A receiver arranged within the borehole receives a detected signal including a signal being generated by a non-linear mixing process from the first-and-second acoustic signal in a non-linear mixing zone within the intersection volume. The method also includes-processing the received signal to extract the signal generatedmore » « less
Full Text Available
Device and method for generating a beam of acoustic energy from a borehole, and applications thereof

Patent Vu, Cung Khac; Sinha, Dipen N.; Pantea, Cristian; ...

In some aspects of the invention, a method of generating a beam of acoustic energy in a borehole is disclosed. The method includes generating a first acoustic wave at a first frequency; generating a second acoustic wave at a second frequency different than the first frequency, wherein the first acoustic wave and second acoustic wave are generated by at least one transducer carried by a tool located within the borehole; transmitting the first and the second acoustic waves into an acoustically non-linear medium, wherein the composition of the non-linear medium produces a collimated beam by a non-linear mixing of themore » « less
Full Text Available

Similar Records

Title: Acoustic source for generating an acoustic beam

Abstract

Citation Formats

Parametric Acoustic Array journal, April 1963

Standing Wave Acoustic Parametric Source patent, March 1975

Standing Wave Acoustic Parametric Source patent, March 1975

Highly-directional acoustic source for use in borehole surveys patent, August 1976

Target location systems patent, February 1981

Apparatus for acoustically investigating a borehole patent, May 1983

Constant beamwidth frequency independent acoustic antenna patent, October 1984

Directional long array for logging vertical boundaries patent, April 1985

Ultrasonic surface texture measurement apparatus and method patent, March 1987

Articulated transducer pad assembly for acoustic logging tool patent, July 1988

Method for determining formation permeability by comparing measured tube waves with formation and borehole parameters patent, January 1989

Control device for a starter valve of a turbine aero-engine patent, February 1989

Borehole logging methods for detection and imaging of formation structural features patent, March 1989

Borehole logging method for fracture detection and evaluation patent, May 1989

Methods for determining formation and borehole parameters via two-dimensional tomographic reconstruction of formation slowness patent, January 1992

Bed continuity detection and analysis using crosswell seismic data patent, September 1992

Measurement of formation characteristics using acoustic borehole tool having sources of different frequencies patent, May 1996

Borehole apparatus and methods for measuring formation velocities as a function of azimuth, and interpretation thereof patent, August 1996

Method and apparatus for beam steering and bessel shading of conformal array patent, June 1997

Ground penetrating sonar patent, February 1998

Cross-well connectivity mapping including separation of compressional and shear wave energy patent, December 1999

Active acoustic wall patent, March 2000

Cross-well seismic mapping method for determining non-linear properties of earth formations between wellbores patent, January 2001

High resolution device and method for imaging concealed objects within an obscuring medium patent, April 2001

Ultrasonic diagnostic imaging of nonlinearly intermodulated and harmonic frequency components patent, August 2002

Mapping subsurface fractures using nonlinearity measurements patent, July 2003

Mapping reservoir characteristics using earth's nonlinearity as a seismic attribute patent, October 2003

Active reduction of tool borne noise in a sonic logging tool patent, December 2003

High efficiency parametric sonar patent, March 2004

Multimode synthesized beam transduction apparatus patent, May 2004

Baffled ring directional transducers and arrays patent, July 2004

Method and apparatus for interferometry, spectral analysis, and three-dimensional holographic imaging of hydrocarbon accumulations and buried objects patent, August 2005

Variable intensity memory gravel pack imaging apparatus and method patent, June 2006

Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications patent, November 2007

Method for borehole measurement of formation properties patent, December 2007

Acoustic transducers for tubulars patent, December 2008

Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications patent, December 2008

Peizoelectric generator particularly for use with wellbore drilling equipment patent, July 2010

Methods and systems for acoustic waveform processing patent, July 2010

Method and system for generating a beam of acoustic energy from a borehole, and applications thereof patent, February 2012

Monopole acoustic transmitter ring comprising piezoelectric material patent, September 2015

Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications patent-application, February 2005

Method And System For Generating A Beam Of Acoustic Energy From A Borehole, And Applications Thereof patent-application, December 2009

Device and Method for Generating a Beam of Acoustic Energy from Aborehole, and Application Thereof patent-application, January 2010

Device and Method for Generating a Beam of Acoustic Energy from a Borehole and Applications Thereof patent-application, April 2011

Parametric Acoustic Array
journal, April 1963

Standing Wave Acoustic Parametric Source
patent, March 1975

Standing Wave Acoustic Parametric Source
patent, March 1975

Highly-directional acoustic source for use in borehole surveys
patent, August 1976

Target location systems
patent, February 1981

Apparatus for acoustically investigating a borehole
patent, May 1983

Constant beamwidth frequency independent acoustic antenna
patent, October 1984

Directional long array for logging vertical boundaries
patent, April 1985

Ultrasonic surface texture measurement apparatus and method
patent, March 1987

Articulated transducer pad assembly for acoustic logging tool
patent, July 1988

Method for determining formation permeability by comparing measured tube waves with formation and borehole parameters
patent, January 1989

Control device for a starter valve of a turbine aero-engine
patent, February 1989

Borehole logging methods for detection and imaging of formation structural features
patent, March 1989

Borehole logging method for fracture detection and evaluation
patent, May 1989

Methods for determining formation and borehole parameters via two-dimensional tomographic reconstruction of formation slowness
patent, January 1992

Bed continuity detection and analysis using crosswell seismic data
patent, September 1992

Measurement of formation characteristics using acoustic borehole tool having sources of different frequencies
patent, May 1996

Borehole apparatus and methods for measuring formation velocities as a function of azimuth, and interpretation thereof
patent, August 1996

Method and apparatus for beam steering and bessel shading of conformal array
patent, June 1997

Ground penetrating sonar
patent, February 1998

Cross-well connectivity mapping including separation of compressional and shear wave energy
patent, December 1999

Active acoustic wall
patent, March 2000

Cross-well seismic mapping method for determining non-linear properties of earth formations between wellbores
patent, January 2001

High resolution device and method for imaging concealed objects within an obscuring medium
patent, April 2001

Ultrasonic diagnostic imaging of nonlinearly intermodulated and harmonic frequency components
patent, August 2002

Mapping subsurface fractures using nonlinearity measurements
patent, July 2003

Mapping reservoir characteristics using earth's nonlinearity as a seismic attribute
patent, October 2003

Active reduction of tool borne noise in a sonic logging tool
patent, December 2003

High efficiency parametric sonar
patent, March 2004

Multimode synthesized beam transduction apparatus
patent, May 2004

Baffled ring directional transducers and arrays
patent, July 2004

Method and apparatus for interferometry, spectral analysis, and three-dimensional holographic imaging of hydrocarbon accumulations and buried objects
patent, August 2005

Variable intensity memory gravel pack imaging apparatus and method
patent, June 2006

Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications
patent, November 2007

Method for borehole measurement of formation properties
patent, December 2007

Acoustic transducers for tubulars
patent, December 2008

Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications
patent, December 2008

Peizoelectric generator particularly for use with wellbore drilling equipment
patent, July 2010

Methods and systems for acoustic waveform processing
patent, July 2010

Method and system for generating a beam of acoustic energy from a borehole, and applications thereof
patent, February 2012

Monopole acoustic transmitter ring comprising piezoelectric material
patent, September 2015

Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications
patent-application, February 2005

Method And System For Generating A Beam Of Acoustic Energy From A Borehole, And Applications Thereof
patent-application, December 2009

Device and Method for Generating a Beam of Acoustic Energy from Aborehole, and Application Thereof
patent-application, January 2010

Device and Method for Generating a Beam of Acoustic Energy from a Borehole and Applications Thereof
patent-application, April 2011