Inventor · disambiguated record
Wen-Fan Chang
Also filed as: CHANG WEN F · CHANG WEN-FAN
4 granted patents·6 pending applications·302 citations·filing 1997–2023
73Inventor score
Files withSTL TECHNOLOGY CO LTD6ZENG HSING IND CO LTD2CLARINET SYSTEMS INC1SECURITAG ASSEMBLY GROUP CO LTD1
Top patents by PatentIndex Score
10 records- 0191US5991885AMethod and apparatus for detecting the presence of a remote device and providing power theretoCLARINET SYSTEMS INC·Filed 1997·Granted Nov 23, 1999·295 cites·18 claims
- 0284US9619743B1RFID device and method for making the sameSECURITAG ASSEMBLY GROUP CO LTD·Filed 2016·Granted Apr 11, 2017·7 cites·31 claims
- 0353US12287374B2Method for estimating direct current internal resistance of batterySTL TECHNOLOGY CO LTD·Filed 2023·Granted Apr 29, 2025·0 cites·7 claims
- 0451US10883212B2Position indicating circuit for a foot controller of a sewing machine, and detecting system using the sameZENG HSING IND CO LTD·Filed 2019·Granted Jan 5, 2021·0 cites·12 claims
- 0551US2023411972A1Driving circuit applied to protection switch of battery moduleSTL TECHNOLOGY CO LTD·Filed 2023·Application pending·0 cites
- 0651US2024079887A1Protection circuit for battery moduleSTL TECHNOLOGY CO LTD·Filed 2023·Application pending·0 cites
- 0751US2024241185A1Estimation method for state of health of batterySTL TECHNOLOGY CO LTD·Filed 2023·Application pending·0 cites
- 0850US2023420958A1Protection circuit of battery moduleSTL TECHNOLOGY CO LTD·Filed 2023·Application pending·0 cites
- 0947US2023143440A1Battery management system and method for a bucking and discharging to battery based on a safety of battery storageSTL TECHNOLOGY CO LTD·Filed 2022·Application pending·0 cites
- 1039US2019062972A1Sewing apparatusZENG HSING IND CO LTD·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →