Inventor
CHEN YI-FU
TW57 patents
⚠️ This page may combine multiple inventors who share the name “CHEN YI-FU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHEN YI-FU
20 patentsUS9327388B2May 3, 2016
Ratchet wrench with angle adjusting mechanism
CHEN YI-FU10 citations84
US9199363B2Dec 1, 2015
Wrench device
CHEN YI-FU8 citations84
US8806986B2Aug 19, 2014
Ratchet wrench with a bushing
CHEN YI-FU12 citations84
US8671809B1Mar 18, 2014
Hand tool with an adjusting structure
CHEN YI-FU12 citations84
US8485069B1Jul 16, 2013
Wrench with a ratchet device
CHEN YI-FU13 citations84
US8272298B2Sep 25, 2012
Steering device for a ratchet screwdriver
CHEN YI-FU11 citations84
US7331259B1Feb 19, 2008
Ratchet wrench
CHEN YI-FU9 citations84
US9878437B2Jan 30, 2018
Coating structure for forming a tool
CHEN YI-FU3 citations73
US9821441B2Nov 21, 2017
Ratchet wrench
CHEN YI-FU5 citations73
US9592594B2Mar 14, 2017
Socket wrench with retaining mechanism
CHEN YI-FU3 citations73
US9457456B2Oct 4, 2016
Reversible ratchet wrench
CHEN YI-FU4 citations73
USD757512SMay 31, 2016
Ratchet wrench head
CHEN YI-FU3 citations73
USD756182SMay 17, 2016
Handle grip for hand tool
CHEN YI-FU3 citations73
US9327389B2May 3, 2016
Ratchet wrench
CHEN YI-FU6 citations73
US9308627B2Apr 12, 2016
Wrench device with a plurality of driving holes
CHEN YI-FU5 citations73
US8806987B2Aug 19, 2014
Steering device for a ratchet screwdriver
CHEN YI-FU5 citations73
US8720309B2May 13, 2014
Ratchet wrench having easily assembling structure
CHEN YI-FU5 citations73
US9138875B2Sep 22, 2015
Ratchet tool device
CHEN YI-FU3 citations63
USD727699SApr 28, 2015
Wrench
CHEN YI-FU3 citations63
US8939050B2Jan 27, 2015
Driving head with an elastic buckle
CHEN YI-FU3 citations63
CHEN YI FU
11 patentsUSD1007263SDec 12, 2023
Ratchet wrench
CHEN YI FU7 citations86
USD959942SAug 9, 2022
Wrench adapter
CHEN YI FU6 citations86
US10702979B2Jul 7, 2020
Torque adjustment device for torque wrench
CHEN YI FU2 citations73
US10398237B2Sep 3, 2019
Security display unit
CHEN YI FU2 citations73
US10093007B2Oct 9, 2018
Torque setting device for torque wrench
CHEN YI FU2 citations73
US12337441B2Jun 24, 2025
Socket structure
CHEN YI FU2 citations69
US11154967B2Oct 26, 2021
Ratchet wrench
CHEN YI FU1 citations62
USD1120714SMar 31, 2026
Socket
CHEN YI FU0 citations57
US12384015B2Aug 12, 2025
Telescopic wrench
CHEN YI FU0 citations57
US11484994B2Nov 1, 2022
Securing device for securing press unit to driving member of ratchet wrench
CHEN YI FU0 citations52
US11161223B2Nov 2, 2021
Socket positioning device of ratchet wrench
CHEN YI FU0 citations52
TIMOTION TECHNOLOGY CO LTD
9 patentsUSD868745SDec 3, 2019
Handheld controller
TIMOTION TECHNOLOGY CO LTD17 citations94
USD868038SNov 26, 2019
Controller
TIMOTION TECHNOLOGY CO LTD17 citations94
USD881141SApr 14, 2020
Controller
TIMOTION TECHNOLOGY CO LTD16 citations86
USD936024SNov 16, 2021
Control box
TIMOTION TECHNOLOGY CO LTD8 citations84
USD923068SJun 22, 2021
Electric cylinder
TIMOTION TECHNOLOGY CO LTD7 citations84
USD868039SNov 26, 2019
Controller
TIMOTION TECHNOLOGY CO LTD9 citations84
USD1017567SMar 12, 2024
Wireless signal transceiver
TIMOTION TECHNOLOGY CO LTD0 citations62
USD1008983SDec 26, 2023
Control box
TIMOTION TECHNOLOGY CO LTD0 citations62
USD947140SMar 29, 2022
Medical paddle controller
TIMOTION TECHNOLOGY CO LTD0 citations62
MEDIATEK INC
3 patentsUS7554469B2Jun 30, 2009
Method for gain error estimation in an analog-to-digital converter and module thereof
MEDIATEK INC2 citations61
US8031103B2Oct 4, 2011
Digitizer with variable sampling clock and method using the same
MEDIATEK INC3 citations58
US7808419B2Oct 5, 2010
Digitizer with variable sampling clock and method using the same
MEDIATEK INC3 citations58
LIOU MING-LUEN
2 patentsAU OPTRONICS CORP
2 patentsCHANG CHIAO-CHIH
1 patentIND TECH RES INST
1 patentLITE ON ELECTRONICS GUANGZHOU
1 patentShowing the top 50 of 57 patents by PatentIndex Score.