Inventor · disambiguated record
Yeng Ming Chang
Also filed as: CHANG YENG-MING
4 granted patents·2 pending applications·163 citations·filing 1990–2018
79Inventor score
Top patents by PatentIndex Score
6 records- 0173US5233505ASecurity device for protecting electronically-stored dataCHANG YENG MING·Filed 1991·Granted Aug 3, 1993·80 cites·3 claims
- 0272US5270523APlate spring for mounting a magnetic stripe card reader's magnetic headUNIFORM IND CORP·Filed 1992·Granted Dec 14, 1993·61 cites·1 claims
- 0369US9226392B2Tamper protection device and data transaction apparatusXAC AUTOMATION CORP·Filed 2013·Granted Dec 29, 2015·2 cites·13 claims
- 0467US5091811ARead head mounting structure for magnetic card readerUNIFORM IND CORP·Filed 1990·Granted Feb 25, 1992·20 cites·1 claims
- 0536US2021097530A1Block chain trading system and block chain trading methodXAC AUTOMATION CORP·Filed 2018·Application pending·0 cites
- 0632US2012124378A1Method for personal identity authentication utilizing a personal cryptographic deviceCHANG YENG MING·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →