Inventor · disambiguated record
Yu-Chun Liu
Also filed as: LIU YU · LIU YU-CHUN
33 granted patents·25 pending applications·87 citations·filing 2002–2025
95Inventor score
Top patents by PatentIndex Score
58 records- 0193US12255374B2Frequency selective couplerQUALCOMM INC·Filed 2022·Granted Mar 18, 2025·2 cites·27 claims
- 0288US12251850B2Tooling guide for a mortise and tenon jointSUPER POWER TOOLS CO LTD·Filed 2022·Granted Mar 18, 2025·1 cites·10 claims
- 0388US10011003B1Pen viceLIU YU CHUN·Filed 2017·Granted Jul 3, 2018·5 cites·10 claims
- 0488US6874245B2Soft stop-proof hook head of a measure tapeFiled 2002·Granted Apr 5, 2005·42 cites·5 claims
- 0585US10258556B2Anti-aging peptide, its composition and method of using the sameLIU YU CHUN·Filed 2017·Granted Apr 16, 2019·2 cites·11 claims
- 0682USD1003141STenon jigSUPER POWER TOOLS CO LTD·Filed 2022·Granted Oct 31, 2023·7 cites·1 claims
- 0779USD1003681SCabinet hardware jigSUPER POWER TOOLS CO LTD·Filed 2022·Granted Nov 7, 2023·6 cites·1 claims
- 0873US11664425B2P-type field effect transistor and method for fabricating the sameUNITED MICROELECTRONICS CORP·Filed 2022·Granted May 30, 2023·0 cites·6 claims
- 0972US11202375B2Surface mount passive component shorted togetherQUALCOMM INC·Filed 2020·Granted Dec 14, 2021·1 cites·19 claims
- 1067US7383708B2Multistage lock cylinder assemblyLIU WEN-KUEI·Filed 2006·Granted Jun 10, 2008·6 cites·16 claims
- 1166USD1016601SDoweling jig kitLIU YU CHUN·Filed 2021·Granted Mar 5, 2024·3 cites·1 claims
- 1266US11629213B2Graft polymer and composite material containing the sameIND TECH RES INST·Filed 2020·Granted Apr 18, 2023·0 cites·9 claims
- 1366US11271078B2P-type field effect transistor having channel region with top portion and bottom portionUNITED MICROELECTRONICS CORP·Filed 2020·Granted Mar 8, 2022·0 cites·1 claims
- 1465US2025135679A1Positioning device for woodworking milling machineSUPER POWER TOOLS CO LTD·Filed 2024·Application pending·0 cites
- 1564US10031345B2Slip-resistant eyewear systemLOOLOOPS LLC·Filed 2016·Granted Jul 24, 2018·1 cites·19 claims
- 1664US7975517B2Multistage lock apparatusLIU WEN-KUEI·Filed 2009·Granted Jul 12, 2011·4 cites·8 claims
- 1764US2025381632A1Positioner and guiding device having positionerSUPER POWER TOOLS CO LTD·Filed 2024·Application pending·0 cites
- 1863US12485566B2Workpiece guiding deviceSUPER POWER TOOLS CO LTD·Filed 2023·Granted Dec 2, 2025·0 cites·12 claims
- 1962US2024009742A1A drilling guide with easily configured mounting holes for handles and the insertion rods thereofSUPER POWER TOOLS CO LTD·Filed 2022·Application pending·0 cites
- 2062US2025025952A1Power supply abutting device and the executed control method thereofSUPER POWER TOOLS CO LTD·Filed 2023·Application pending·0 cites
- 2161USD1072892SWoodworking machinery electronic control panelSUPER POWER TOOLS CO LTD·Filed 2022·Granted Apr 29, 2025·2 cites·1 claims
- 2261US11606075B2Tunable, broadband directional coupler circuits employing an additional, selectable coupling circuit(s) for controlling frequency responseQUALCOMM INC·Filed 2021·Granted Mar 14, 2023·0 cites·32 claims
- 2361US10258557B2Peptide for stimulating melanogenesisLIU YU CHUN·Filed 2017·Granted Apr 16, 2019·0 cites·5 claims
- 2459US8047032B1Combination lock with two dial platesLIU CHAO-HSUAN·Filed 2010·Granted Nov 1, 2011·4 cites·7 claims
- 2559US2025315357A1Identification of application uninstallation and reinstallationBEIJING ZITIAO NETWORK TECHNOLOGY CO LTD·Filed 2025·Application pending·0 cites
- 2659US2024383168A1Round bar cutting deviceSUPER POWER TOOLS CO LTD·Filed 2023·Application pending·0 cites
- 2757US10651275B2P-type field effect transistor and method for fabricating the sameUNITED MICROELECTRONICS CORP·Filed 2018·Granted May 12, 2020·0 cites·6 claims
- 2855USD1026600SClampSUPER POWER TOOLS CO LTD·Filed 2022·Granted May 14, 2024·1 cites·1 claims
- 2955US2024274675A1Device with shallow source/drain contact and related methodTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2023·Application pending·0 cites
- 3054US11872471B2Braking mechanism of a wheeled deviceLIU WEN KUEI·Filed 2022·Granted Jan 16, 2024·0 cites·9 claims
- 3154US11246822B2Biomedical composition for skin care and/or maintenance and delaying and/or inhibiting skin aging and the use thereofIND TECH RES INST·Filed 2019·Granted Feb 15, 2022·0 cites·17 claims
- 3252US12508734B2Intuitive electric lifting device for woodworking trimming machineSUPER POWER TOOLS CO LTD·Filed 2023·Granted Dec 30, 2025·0 cites·2 claims
- 3352US2023420509A1Semiconductor device and method of forming the sameTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2022·Application pending·0 cites
- 3452US2022168868A1Abrasive wheel which can be provided with a sandpaperFORTUNE EXTENDABLES CORP·Filed 2020·Application pending·0 cites
- 3551US2024351374A1Bicycle rear-wheel drive mechanismDONGGUAN JINGTONG MACHINERY TECH CO LTD·Filed 2024·Application pending·0 cites
- 3650US10232009B1Peptide for promoting wound healing, its composition and method of using the samePRO SUNFUN BIOTECH RES AND DEVELOPMENT CO LTD·Filed 2017·Granted Mar 19, 2019·0 cites·6 claims
- 3750US2024191744A1Kind of bending bolt type anti-loosening nutDONGGUAN JINGTONG MACHINERY TECH CO LTD·Filed 2023·Application pending·0 cites
- 3849US10364270B2Eye-care peptide, its composition and method of using the samePRO SUNFUN BIOTECH RES AND DEVELOPMENT CO LTD·Filed 2017·Granted Jul 30, 2019·0 cites·6 claims
- 3947US2023367913A1Terminal chip and measurement method thereofHUAWEI TECH CO LTD·Filed 2023·Application pending·0 cites
- 4045US11436376B2Terminal chip integrated with security elementHUAWEI TECH CO LTD·Filed 2019·Granted Sep 6, 2022·0 cites·10 claims
- 4143US11305839B2Transmission device for bicycleLIU WEN KUEI·Filed 2019·Granted Apr 19, 2022·0 cites·9 claims
- 4243US2018304671A1Pen assembly press and lever thereofLIU YU CHUN·Filed 2017·Application pending·0 cites
- 4343US2019362058A1Face unlocking method and device, electronic device, and computer storage mediumBEIJING KUANGSHI TECH CO LTD·Filed 2018·Application pending·0 cites
- 4442US11404388B2Surface mount passive component shorted together and a dieQUALCOMM INC·Filed 2020·Granted Aug 2, 2022·0 cites·25 claims
- 4542US2019360238A1Anti-theft structure of dual-locking lockLIU WEN KUEI·Filed 2018·Application pending·0 cites
- 4642US2012051865A1Clamping apparatus for drilling oblique holesLIU YU-CHUN·Filed 2010·Application pending·0 cites
- 4742US2022205065A1Method for separating yttrium oxide from high-yttrium rare earth ore by grouping manner and method for separating yttrium oxide from medium-yttrium and europium-rich earth ore by grouping mannerCHANGCHUN INST APPLIED CHEMISTRY CAS·Filed 2019·Application pending·0 cites
- 4841US10447226B2Three dimensional inductor-capacitor apparatus and method of fabricatingQUALCOMM INC·Filed 2017·Granted Oct 15, 2019·0 cites·25 claims
- 4940US9418843B2Method for manufacturing ordered nanowire array of NiO doped with Pt in situINST OF MICROELECTRONICS CAS·Filed 2013·Granted Aug 16, 2016·0 cites·10 claims
- 5040US2017169281A1Fingerprint recognition system of portable electronic deviceLIU WEN-KUEI·Filed 2016·Application pending·0 cites
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →