Inventor · disambiguated record
Yi-Fu Chen
Also filed as: CHEN YI-FU
56 granted patents·38 pending applications·283 citations·filing 2005–2024
98Inventor score
Top patents by PatentIndex Score
94 records- 0194US8502924B2Television signal receiver capable of cancelling linear and non-linear distortionLIOU MING-LUEN·Filed 2007·Granted Aug 6, 2013·40 cites·22 claims
- 0290US8485069B1Wrench with a ratchet deviceCHEN YI-FU·Filed 2012·Granted Jul 16, 2013·13 cites·7 claims
- 0389US8671809B1Hand tool with an adjusting structureCHEN YI-FU·Filed 2012·Granted Mar 18, 2014·12 cites·3 claims
- 0488US12337441B2Socket structureCHEN YI FU·Filed 2023·Granted Jun 24, 2025·2 cites·4 claims
- 0588US9821441B2Ratchet wrenchCHEN YI-FU·Filed 2016·Granted Nov 21, 2017·5 cites·5 claims
- 0687US8272298B2Steering device for a ratchet screwdriverCHEN YI-FU·Filed 2010·Granted Sep 25, 2012·11 cites·6 claims
- 0785US8806986B2Ratchet wrench with a bushingCHEN YI-FU·Filed 2013·Granted Aug 19, 2014·12 cites·4 claims
- 0883US9327388B2Ratchet wrench with angle adjusting mechanismCHEN YI-FU·Filed 2014·Granted May 3, 2016·10 cites·7 claims
- 0983US9199363B2Wrench deviceCHEN YI-FU·Filed 2013·Granted Dec 1, 2015·8 cites·2 claims
- 1082USD1007263SRatchet wrenchCHEN YI FU·Filed 2022·Granted Dec 12, 2023·7 cites·1 claims
- 1182USD936024SControl boxTIMOTION TECHNOLOGY CO LTD·Filed 2020·Granted Nov 16, 2021·8 cites·1 claims
- 1280USD868038SControllerTIMOTION TECHNOLOGY CO LTD·Filed 2018·Granted Nov 26, 2019·17 cites·1 claims
- 1380US9327389B2Ratchet wrenchCHEN YI-FU·Filed 2014·Granted May 3, 2016·6 cites·5 claims
- 1479USD881141SControllerTIMOTION TECHNOLOGY CO LTD·Filed 2018·Granted Apr 14, 2020·16 cites·1 claims
- 1579USD868745SHandheld controllerTIMOTION TECHNOLOGY CO LTD·Filed 2018·Granted Dec 3, 2019·17 cites·1 claims
- 1678US9878437B2Coating structure for forming a toolCHEN YI-FU·Filed 2015·Granted Jan 30, 2018·3 cites·7 claims
- 1777USD959942SWrench adapterCHEN YI FU·Filed 2020·Granted Aug 9, 2022·6 cites·1 claims
- 1877US10702979B2Torque adjustment device for torque wrenchCHEN YI FU·Filed 2018·Granted Jul 7, 2020·2 cites·7 claims
- 1977US10398237B2Security display unitCHEN YI FU·Filed 2018·Granted Sep 3, 2019·2 cites·3 claims
- 2076US10093007B2Torque setting device for torque wrenchCHEN YI FU·Filed 2016·Granted Oct 9, 2018·2 cites·7 claims
- 2175US7435343B2Vibration filterIND TECH RES INST·Filed 2005·Granted Oct 14, 2008·6 cites·13 claims
- 2274US9308627B2Wrench device with a plurality of driving holesCHEN YI-FU·Filed 2012·Granted Apr 12, 2016·5 cites·4 claims
- 2374US8806987B2Steering device for a ratchet screwdriverCHEN YI-FU·Filed 2012·Granted Aug 19, 2014·5 cites·6 claims
- 2474US8720309B2Ratchet wrench having easily assembling structureCHEN YI-FU·Filed 2012·Granted May 13, 2014·5 cites·3 claims
- 2574US7331259B1Ratchet wrenchCHEN YI-FU·Filed 2006·Granted Feb 19, 2008·9 cites·1 claims
- 2672US11154967B2Ratchet wrenchCHEN YI FU·Filed 2019·Granted Oct 26, 2021·1 cites·7 claims
- 2772US9457456B2Reversible ratchet wrenchCHEN YI-FU·Filed 2014·Granted Oct 4, 2016·4 cites·3 claims
- 2871US8212941B2Digitized analog TV signal processing systemLIOU MING-LUEN·Filed 2008·Granted Jul 3, 2012·4 cites·18 claims
- 2969US9592594B2Socket wrench with retaining mechanismCHEN YI-FU·Filed 2014·Granted Mar 14, 2017·3 cites·7 claims
- 3069US2019368067A1Ratchet wheel and method for making the sameCHEN YI FU·Filed 2018·Application pending·0 cites
- 3168US8939050B2Driving head with an elastic buckleCHEN YI-FU·Filed 2013·Granted Jan 27, 2015·3 cites·9 claims
- 3267US9138875B2Ratchet tool deviceCHEN YI-FU·Filed 2013·Granted Sep 22, 2015·3 cites·7 claims
- 3367US2019368066A1Ratchet wheel and method for making the sameCHEN YI FU·Filed 2018·Application pending·0 cites
- 3466USD868039SControllerTIMOTION TECHNOLOGY CO LTD·Filed 2018·Granted Nov 26, 2019·9 cites·1 claims
- 3565US12384015B2Telescopic wrenchCHEN YI FU·Filed 2023·Granted Aug 12, 2025·0 cites·9 claims
- 3665US7808419B2Digitizer with variable sampling clock and method using the sameMEDIATEK INC·Filed 2008·Granted Oct 5, 2010·3 cites·12 claims
- 3764US8031103B2Digitizer with variable sampling clock and method using the sameMEDIATEK INC·Filed 2010·Granted Oct 4, 2011·3 cites·8 claims
- 3864US2024246203A1Wrench with a rotary headCHEN YI FU·Filed 2024·Application pending·0 cites
- 3964US2024189972A1Pivotal structure for driving head of wrenchCHEN YI FU·Filed 2024·Application pending·0 cites
- 4063US12301134B2Inverter-based comparatorNCKU RES AND DEVELOPMENT FOUNDATION·Filed 2023·Granted May 13, 2025·0 cites·8 claims
- 4162USD923068SElectric cylinderTIMOTION TECHNOLOGY CO LTD·Filed 2019·Granted Jun 22, 2021·7 cites·1 claims
- 4262US8724034B2Apparatuses and methods for scanning television channelsCHANG CHIAO-CHIH·Filed 2008·Granted May 13, 2014·2 cites·25 claims
- 4361US12483114B2Single-inductor multiple-output DC-DC converterUNIV NAT CHENG KUNG·Filed 2023·Granted Nov 25, 2025·0 cites·9 claims
- 4460US2017246777A1Manufacturing steps for hand toolCHEN YI-FU·Filed 2017·Application pending·0 cites
- 4559US11029571B2Display panelAU OPTRONICS CORP·Filed 2019·Granted Jun 8, 2021·0 cites·10 claims
- 4659US2025375858A1Ratchet wrench assemblyCHEN YI FU·Filed 2024·Application pending·0 cites
- 4759US2025387882A1Open-end wrenchCHEN YI FU·Filed 2024·Application pending·0 cites
- 4858US2025054796A1Integrated load port first aid platformTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2023·Application pending·0 cites
- 4957US11372297B2Display panelAU OPTRONICS CORP·Filed 2021·Granted Jun 28, 2022·0 cites·13 claims
- 5057US2025205863A1Torque wrenchCHEN YI FU·Filed 2023·Application pending·0 cites
Showing the top 50 of 94 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →