Inventor · disambiguated record
Dacai Chen
Also filed as: CHEN DACAI
2 granted patents·1 pending application·3 citations·filing 2007–2007
38Inventor score
Top patents by PatentIndex Score
3 records- 0157US8255706B2Dual usage smart card of CPU and logical encryption and its data synchronization methodCHEN DACAI·Filed 2007·Granted Aug 28, 2012·3 cites·8 claims
- 0236US8496174B2Smart card operating system and methodCHEN DACAI·Filed 2007·Granted Jul 30, 2013·0 cites·16 claims
- 0332US2008000989A1Smart card operating system and operating processBEIJING WATCHDATA SYSTEM CO LT·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →