Inventor

Hegeon Kwun

Inventor

San Antonio, TX, US

Overview

1985–2018

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.

G01Nprimary

G01NInvestigating or analysing materials by determining their chemical or physical properties66%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure10%

G01BMeasuring length, thickness or similar linear dimensions5%

F22BMethods of steam generation3%

G01MTesting static or dynamic balance of machines or structures3%

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

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for2%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables2%

B66BElevators2%

G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves2%

PatentTitleYear

10,048,225Apparatus and method for inspection of tubes in a boiler2018 9,465,011'Flexible magnetostrictive probe having sensor elements without permanent magnets'2016 9,176,108'Method and device for measuring corrosion metal loss'2015 9,170,239'Magnetostrictive sensor having crimped magnetostrictive strip for high temperature operation'2015 9,146,215'Apparatus and method for inspection of tubes in a boiler'2015 8,941,287'Method and device for long-term monitoring of components using guided waves'2015 8,098,065'Magnetostrictive sensor probe for guided-wave inspection and monitoring of wire ropes/cables and anchor rods'2012 7,913,562'Flexible plate magnetostrictive sensor probe for guided-wave inspection of structures'2011 7,852,073'Method and device for long-range torsional guided-wave inspection of piping with a partial excitation and detection around the pipe circumference'2010 7,634,392'Simulation of guided wave reflection signals representing defects in conduits'2009 7,610,791'Time-gain control method and system for long-range guided-wave inspection and monitoring'2009 7,565,252'Method for automatic differentiation of weld signals from defect signals in long-range guided-wave inspection using phase comparison'2009 7,474,092'Method and device for long-range guided-wave inspection of fire side of waterwall tubes in boilers'2009 RE040515'Method and apparatus for inspecting pipelines from an in-line inspection vehicle using magnetostrictive probes'2008 7,131,339'Measurement of torsional dynamics of rotating shafts using magnetostrictive sensors'2006 7,019,520'Method and system for torsional wave inspection of heat exchanger tubes'2006 6,968,727'Calibration method and device for long range guided wave inspection of piping'2005 6,925,881'Time shift data analysis for long-range guided wave inspection'2005 6,917,196'Method and apparatus generating and detecting torsional wave inspection of pipes or tubes'2005 6,815,948'Method of detecting tension wire break in concrete pole'2004 6,779,409'Measurement of torsional dynamics of rotating shafts using magnetostrictive sensors'2004 6,624,628'Method and apparatus generating and detecting torsional waves for long range inspection of pipes and tubes'2003 6,429,650'Method and apparatus generating and detecting torsional wave inspection of pipes or tubes'2002 6,424,150'Magnetostrictive sensor rail inspection system'2002 6,404,189'Method and apparatus for inspecting pipelines from an in-line inspection vehicle using magnetostrictive probes'2002 6,396,262'Method and apparatus for short term inspection or long term structural health monitoring'2002 6,373,245'Method for inspecting electric resistance welds using magnetostrictive sensors'2002 6,295,677'Method for inspecting liquid filled pipes using magnetostrictive sensors'2001 6,294,912'Method and apparatus for nondestructive inspection of plate type ferromagnetic structures using magnetostrictive techniques'2001 6,212,944'Apparatus and method for monitoring engine conditions, using magnetostrictive sensors'2001 6,205,859'Method for improving defect detectability with magnetostrictive sensors for piping inspection'2001 6,201,391'Nonlinear harmonics method and system for measuring degradation in protective coatings'2001 6,134,947'Load sensor for measuring engine cylinder pressure and seat occupant weight'2000 6,000,288'Determining average wall thickness and wall-thickness variation of a liquid-carrying pipe'1999 5,970,434'Method for determining average wall thickness for pipes and tubes using guided waves'1999 5,821,430'Method and apparatus for conducting in-situ nondestructive tensile load measurements in cables and ropes'1998 5,767,766'Apparatus and method for monitoring vehicular impacts using magnetostrictive sensors'1998 5,747,696'Method of non-invasively monitoring pressure of a compressed gas in a closed container'1998 5,581,037'Nondestructive evaluation of pipes and tubes using magnetostrictive sensors'1996 5,457,994'Nondestructive evaluation of non-ferromagnetic materials using magnetostrictively induced acoustic/ultrasonic waves and magnetostrictively detected acoustic emissions'1995 5,456,113'Nondestructive evaluation of ferromagnetic cables and ropes using magnetostrictively induced acoustic/ultrasonic waves and magnetostrictively detected acoustic emissions'1995 5,180,969'Detection of reinforcing steel corrosion in concrete structures using non-linear harmonic and intermodulation wave generation'1993 4,979,125'Non-destructive evaluation of ropes by using transverse impulse vibrational wave method'1990 4,711,120'Method of wear monitoring using ultrasonic phase comparison'1987 4,497,209'Nondestructive testing of stress in a ferromagnetic structural material utilizing magnetically induced velocity change measurements'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2016Patents assigned to SOUTHWEST RES INST (39)· patent assignee history

1985–2018Based in San Antonio, TX, US· patent location history

1987Patents assigned to ASS OF AMERICAN RAILROADS (1)· patent assignee history

1996Based in Austin, TX, US· patent location history

2012–2015Patents assigned to KWUN HEGEON (3)· patent assignee history

2015Patents assigned to ELECTRIC POWER RES INST (1)· patent assignee history

2018Patents assigned to ELECTRIC POWER RES INSTITUTE INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SOUTHWEST RES INST	39	1985–2016
KWUN HEGEONself	3	2012–2015
ASS OF AMERICAN RAILROADS	1	1987
ELECTRIC POWER RES INST	1	2015
ELECTRIC POWER RES INSTITUTE INC	1	2018

Locations

Location	Patents	Span
San Antonio, Texas, US	44	1985–2018
Austin, Texas, US	1	1996