Inventor · disambiguated record
Qingcai Guan
Also filed as: GUAN QINGCAI
4 granted patents·1 pending application·43 citations·filing 2008–2017
72Inventor score
Top patents by PatentIndex Score
5 records- 0191US8000496B2Coupon copy protectionCOUPONS COM INC·Filed 2011·Granted Aug 16, 2011·41 cites·10 claims
- 0273US9576298B2Coupon copy protectionQUOTIENT TECH INC·Filed 2016·Granted Feb 21, 2017·1 cites·14 claims
- 0364US9424585B2Coupon copy protectionCOUPONS COM INCORPORATED·Filed 2013·Granted Aug 23, 2016·1 cites·14 claims
- 0460US2017154352A1Coupon copy protectionQUOTIENT TECH INC·Filed 2017·Application pending·0 cites
- 0534US8559667B2Coupon copy protectionKESWANI RAVI KANT·Filed 2008·Granted Oct 15, 2013·0 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →