Inventor · disambiguated record
Hung-Cheng Tsai
Also filed as: TSAI HUNG-CHENG
2 granted patents·3 pending applications·180 citations·filing 2003–2024
70Inventor score
Top patents by PatentIndex Score
5 records- 0191US6761051B1Electric padlockEZ TREND TECHNOLOGY CO LTD·Filed 2003·Granted Jul 13, 2004·115 cites·9 claims
- 0287US6807834B2Electric door lock with a coupling mechanism for selective engagement between a deadbolt operating spindle and a door handleEZ TREND TECHNOLOGY CO LTD·Filed 2003·Granted Oct 26, 2004·65 cites·14 claims
- 0351US2025096470A1Electronic devicePEGATRON CORP·Filed 2024·Application pending·0 cites
- 0440US2005156441A1Door lockEZ TREND TECHNOLOGY CO LTD·Filed 2004·Application pending·0 cites
- 0540US2005179556A1Alarm device for pickproofing a lock memberEZ TREND TECHNOLOGY CO LTD·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →