Inventor · disambiguated record
Erh-Chieh Chang
Also filed as: CHANG ERH-CHIEH
3 granted patents·1 pending application·12 citations·filing 2017–2018
61Inventor score
Files withDELL PRODUCTS LP4
Top patents by PatentIndex Score
4 records- 0188US10147569B1Keyboard backlight moduleDELL PRODUCTS LP·Filed 2017·Granted Dec 4, 2018·8 cites·8 claims
- 0280US10254802B1Retractable keyboard hinge structure for magnetic keyboardDELL PRODUCTS LP·Filed 2018·Granted Apr 9, 2019·4 cites·20 claims
- 0357US10853525B2Hack-proof security keyboardDELL PRODUCTS LP·Filed 2018·Granted Dec 1, 2020·0 cites·20 claims
- 0442US2020090884A1Information handling system keyboard backlightDELL PRODUCTS LP·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →