Inventor

Batakrishna Mandal

Inventor

Missouri City, TX, US

Overview

61→

Patents

1997–2021

Patent span

Physics

Primary field (CPC G)

Patents· 61 as inventor

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

G01Vprimary

G01VGeophysics37%

E21BEarth or rock drilling31%

G01NInvestigating or analysing materials by determining their chemical or physical properties9%

G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves5%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general3%

G01BMeasuring length, thickness or similar linear dimensions3%

H01LSemiconductor devices3%

H10NElectric solid-state devices not otherwise provided for3%

H04BTransmission2%

G06FElectric digital data processing1%

PatentTitleYear

11,117,166Ultrasonic transducers with piezoelectric material embedded in backing2021 10,999,142Correlation of virtual network traffic across bare metal servers2021 10,711,593Locating a downhole tool in a wellbore2020 10,677,048Downhole fluid detection using surface waves2020 10,570,734Determining characteristics of a fluid in a wellbore2020 10,502,854Real-time adaptive minimum phase wavelet generation for downhole tools2019 10,439,127Bender bar transducer having stacked encapsulated actuators2019 10,436,020In-situ borehole fluid speed and attenuation measurement in an ultrasonic scanning tool2019 10,408,052Measuring frequency-dependent acoustic attenuation2019 10,379,246Dynamic gain system with azimuthal averaging for downhole logging tools2019 10,352,152Acoustic calipering and analysis of annulus materials2019 10,323,508Apparatus and methods for monitoring the retrieval of a well tool2019 10,280,733Methods for evaluating cement bonding2019 10,280,744Bender bar modal shaping2019 10,273,797Casing and cement evaluation tool with reduced transmitter ringing2019 10,241,086Validation of cased-hole acoustic tools2019 10,209,384Peak tracking and rejection in acoustic logs2019 10,175,375Method and system for direct slowness determination of dispersive waves in a wellbore environment2019 9,869,173'Pulse generation for downhole logging'2018 9,753,170'Sourceless density determination apparatus, methods, and systems'2017 9,732,584'Use of micro-electro-mechanical systems (MEMS) in well treatments'2017 9,719,965'Mud settlement detection technique by non-destructive ultrasonic measurements'2017 9,714,566'Determining locations of acoustic sources around a borehole'2017 9,664,034'Acoustic transducer apparatus, systems, and methods'2017 9,645,269'Ultrasonic imaging in wells or tubulars'2017 9,631,480'Acoustic velocity measurements using tilted transducers'2017 9,541,657'Method of controlled pulse driving of a stacked PZT bender bar for dipole acoustic radiation'2017 9,523,273'Acoustic monitoring of well structures'2016 9,354,342'Acoustic signal processing using model-based adaptive filtering'2016 9,158,014'Acoustic source apparatus, systems, and methods'2015 8,576,660'Ultrasonic imaging in wells or tubulars'2013 8,339,276'Monoconductor data-power transmission'2012 8,316,936'Use of micro-electro-mechanical systems (MEMS) in well treatments'2012 8,302,686'Use of micro-electro-mechanical systems (MEMS) in well treatments'2012 8,291,975'Use of micro-electro-mechanical systems (MEMS) in well treatments'2012 8,270,250'Programmable data acquisition for tubular objects'2012 8,162,050'Use of micro-electro-mechanical systems (MEMS) in well treatments'2012 8,125,848'Acoustic logging-while-drilling tools having a hexapole source configuration and associated logging methods'2012 7,705,878'Method and apparatus to create a down-hole video log to transmit down-hole video data'2010 7,675,814'Method and apparatus for generating acoustic signals with a single mode of propagation'2010 7,660,195'Attenuation mapping apparatus, systems, and methods'2010 7,656,747'Ultrasonic imaging in wells or tubulars'2010 7,392,135'Adaptive equalization of downhole acoustic receivers'2008 7,350,568'Logging a well'2008 7,099,810'Acoustic logging tool having quadrupole source'2006 7,089,119'Acoustic signal processing method using array coherency'2006 6,957,700'Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties'2005 6,907,349'Acoustic signal processing method using array coherency'2005 6,748,329'Acoustic signal processing method using array coherency'2004 6,712,138'Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties'2004 6,661,737'Acoustic logging tool having programmable source waveforms'2003 6,188,961'Acoustic logging apparatus and method'2001 6,125,079'System and method for providing dual distance transducers to image behind an acoustically reflective layer'2000 6,102,152'Dipole/monopole acoustic transmitter, methods for making and using same in down hole tools'2000 6,041,861'Method to determine self-calibrated circumferential cased bond impedance'2000 6,026,913'Acoustic method of connecting boreholes for multi-lateral completion'2000 6,021,093'Transducer configuration having a multiple viewing position feature'2000 6,002,639'Sensor configuration for nulling reverberations to image behind reflective layers'1999 5,995,447'System and method for processing acoustic signals to image behind reflective layers'1999 5,763,773'Rotating multi-parameter bond tool'1998 5,678,643'Acoustic logging while drilling tool to determine bed boundaries'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–2013Patents assigned to HALLIBURTON ENERGY SERV INC (27)· patent assignee history

1997–2021Based in Missouri City, TX, US· patent location history

2012–2017Patents assigned to MANDAL BATAKRISHNA (14)· patent assignee history

2012–2017Patents assigned to BONAVIDES CLOVIS (7)· patent assignee history

2012–2017Patents assigned to RAVI KRISHNA M (5)· patent assignee history

2015–2021Patents assigned to HALLIBURTON ENERGY SERVICES INC (29)· patent assignee history

2019Based in Fort Bend, TX, US· patent location history

2021Based in Santa Clara, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HALLIBURTON ENERGY SERVICES INC	29	2015–2021
HALLIBURTON ENERGY SERV INC	27	1997–2013
MANDAL BATAKRISHNAself	14	2012–2017
BONAVIDES CLOVIS	7	2012–2017
RAVI KRISHNA M	5	2012–2017

Locations

Location	Patents	Span
Missouri City, Texas, US	59	1997–2021
Santa Clara, California, US	1	2021
Fort Bend, Texas, US	1	2019