Inventor · disambiguated record
Sung Keun Lee
Also filed as: LEE SUNG KEUN
43 granted patents·12 pending applications·264 citations·filing 1996–2023
97Inventor score
Top patents by PatentIndex Score
55 records- 0190US10270111B2Method for accelerating activation of fuel cell stackHYUNDAI MOTOR CO LTD·Filed 2015·Granted Apr 23, 2019·4 cites·10 claims
- 0288US11241928B2Hybrid suspension arm for vehicleILJIN CO LTD·Filed 2019·Granted Feb 8, 2022·8 cites·11 claims
- 0388US10814535B2Hybrid suspension armILJIN CO LTD·Filed 2016·Granted Oct 27, 2020·9 cites·9 claims
- 0488US9653743B2Method and apparatus for detecting defects of fuel cell membrane-electrode assemblyHYUNDAI MOTOR CO LTD·Filed 2014·Granted May 16, 2017·5 cites·17 claims
- 0587US9299998B2Fuel cell management methodHYUNDAI MOTOR CO LTD·Filed 2014·Granted Mar 29, 2016·5 cites·8 claims
- 0687US9170216B2Pinhole detection system of fuel cellHYUNDAI MOTOR CO LTD·Filed 2014·Granted Oct 27, 2015·6 cites·6 claims
- 0787US8858006B2Light emitting diode lampLEE SUNG-KEUN·Filed 2012·Granted Oct 14, 2014·10 cites·17 claims
- 0883US7407317B2Prism sheet and backlight unit using the sameLG DISPLAY CO LTD·Filed 2005·Granted Aug 5, 2008·14 cites·18 claims
- 0981USD751978SRechargeable batteryORANGE POWER LTD·Filed 2014·Granted Mar 22, 2016·26 cites·1 claims
- 1081US7473009B2Direct type back light unit for liquid crystal display deviceLG DISPLAY CO LTD·Filed 2005·Granted Jan 6, 2009·4 cites·5 claims
- 1179US7566158B2Display device and backlight unit for the sameLG DISPLAY CO LTD·Filed 2005·Granted Jul 28, 2009·6 cites·28 claims
- 1279USD569030SEmergency lightJE WOO CORP LTD·Filed 2007·Granted May 13, 2008·25 cites·1 claims
- 1377US7484874B2Optical sheet and backlight unit having the sameLG DISPLAY CO LTD·Filed 2005·Granted Feb 3, 2009·13 cites·9 claims
- 1476US7774965B2Illuminated emergency signJE WOO CORP LTD HUI YANG·Filed 2009·Granted Aug 17, 2010·3 cites·6 claims
- 1575US10953577B2Vehicular hybrid suspension arm and manufacturing method thereofILJIN CO LTD·Filed 2016·Granted Mar 23, 2021·3 cites·13 claims
- 1675USD625363SIlluminated exit signJE WOO CORP LTD HUI YANG·Filed 2009·Granted Oct 12, 2010·21 cites·1 claims
- 1775US7665877B2Prism sheet, backlight unit using the same, and method for fabricating the prism sheetLG DISPLAY CO LTD·Filed 2005·Granted Feb 23, 2010·7 cites·22 claims
- 1874US8765326B2Joining device for fuel cell stack and fuel cell stack provided with the sameHYUNDAI MOTOR CO LTD·Filed 2013·Granted Jul 1, 2014·1 cites·1 claims
- 1973USD495750SExit sign and rotatable emergency lampJE WOO CORP LTD·Filed 2003·Granted Sep 7, 2004·16 cites·1 claims
- 2071US8404397B2Joining device for fuel cell stack and fuel cell stack provided with the sameKO HAENG JIN·Filed 2010·Granted Mar 26, 2013·1 cites·11 claims
- 2170US9522585B2Polymer composite strut insulator and suspension system for vehicle applying the sameHYUNDAI MOTOR CO LTD·Filed 2015·Granted Dec 20, 2016·3 cites·14 claims
- 2266USD500814SExit sign and rotatable emergency lampJE WOO CORP LTD·Filed 2004·Granted Jan 11, 2005·12 cites·1 claims
- 2366US6031786AOperation control circuits and methods for integrated circuit memory devicesSAMSUNG ELECTRONICS CO LTD·Filed 1998·Granted Feb 29, 2000·24 cites·25 claims
- 2465US7802894B2Direct type back light unit for liquid crystal display deviceLG DISPLAY CO LTD·Filed 2008·Granted Sep 28, 2010·1 cites·6 claims
- 2559US7905647B2Prism sheet, back light unit using the same and liquid crystal display device having the back light unitLG DISPLAY CO LTD·Filed 2005·Granted Mar 15, 2011·1 cites·14 claims
- 2659US7628526B2Back light unitLG DISPLAY CO LTD·Filed 2005·Granted Dec 8, 2009·3 cites·19 claims
- 2758US10056633B2Performance recovery method for fuel cell stackHYUNDAI MOTOR CO LTD·Filed 2013·Granted Aug 21, 2018·0 cites·8 claims
- 2858US8654920B2System for detecting pin hole of fuel cell stack partsAHN SANG YEOUL·Filed 2011·Granted Feb 18, 2014·2 cites·9 claims
- 2956US8052294B2Direct type back light unit for liquid crystal display deviceLG DISPLAY CO LTD·Filed 2010·Granted Nov 8, 2011·0 cites·4 claims
- 3054US9508998B2Apparatus and method for activating fuel cell stackLEE JAE HYUK·Filed 2011·Granted Nov 29, 2016·0 cites·6 claims
- 3154US7922368B2Light module and flat light unit in a liquid crystal display deviceLG DISPLAY CO LTD·Filed 2007·Granted Apr 12, 2011·1 cites·9 claims
- 3252US10312534B2System and method for recovering performance of fuel cellHYUNDAI MOTOR CO LTD·Filed 2013·Granted Jun 4, 2019·0 cites·6 claims
- 3352US10090546B2Method for activating fuel cell stack without using electric loadHYUNDAI MOTOR CO LTD·Filed 2015·Granted Oct 2, 2018·0 cites·8 claims
- 3452USD623237SCombined illuminated emergency and exit signJE WOO CORP LTD HUI YANG·Filed 2009·Granted Sep 7, 2010·8 cites·1 claims
- 3551US11802671B2Emergency lampJE WOO CORP LTD·Filed 2022·Granted Oct 31, 2023·0 cites·10 claims
- 3651US2024072787A1Output driving circuit and system including the sameHAECHITECH CORP·Filed 2023·Application pending·0 cites
- 3751US2011122991A1Pinhole detection system of fuel cellHYUNDAI MOTOR CO LTD·Filed 2010·Application pending·0 cites
- 3848US9831512B2Method for activating stack of fuel cellHYUNDAI MOTOR CO LTD·Filed 2016·Granted Nov 28, 2017·0 cites·9 claims
- 3948US2014038068A1Method for recovering performance of fuel cellHYUNDAI MOTOR CO LTD·Filed 2012·Application pending·0 cites
- 4048US2014045086A1Pre-activation method for fuel cell stackHYUNDAI MOTOR CO LTD·Filed 2012·Application pending·0 cites
- 4147US2012124873A1Emergency-light indicatorLEE SUNG-KEUN·Filed 2011·Application pending·0 cites
- 4246USD751977SRechargeable batteryORANGE POWER LTD·Filed 2014·Granted Mar 22, 2016·5 cites·1 claims
- 4346USD751979SRechargeable batteryORANGE POWER LTD·Filed 2014·Granted Mar 22, 2016·5 cites·1 claims
- 4443US8296977B2Emergency-light indicatorLEE SUNG-KEUN·Filed 2011·Granted Oct 30, 2012·0 cites·6 claims
- 4541US2019315174A1Hybrid suspension arm for vehicle and method for manufacturing sameILJIN CO LTD·Filed 2019·Application pending·0 cites
- 4641US2013014262A1Mobile communication terminal having a behavior-based malicious code detection function and detection method thereofAHNLAB INC·Filed 2011·Application pending·0 cites
- 4740US7465072B2Backlight unit and liquid crystal display device using the sameLG DISPLAY CO LTD·Filed 2005·Granted Dec 16, 2008·0 cites·7 claims
- 4839US6593067B2Method for manufacturing a microstructure by using a high energy light sourcePOSTECH FOUNDATION·Filed 2002·Granted Jul 15, 2003·3 cites·10 claims
- 4938US5645953ASecondary battery and method for controlling the self-discharge of a nickel/metal hydride secondary batteryHYUNDAI MOTOR COMPANY LTD·Filed 1996·Granted Jul 8, 1997·9 cites·8 claims
- 5038US2017207433A1Hollow core secondary battery and connector thereforORANGE POWER LTD·Filed 2015·Application pending·0 cites
Showing the top 50 of 55 patent records by PatentIndex Score.
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