Inventor · disambiguated record
Maria Qian Zhao
Also filed as: ZHAO MARIA QIAN
4 granted patents·1 pending application·9 citations·filing 2007–2011
67Inventor score
Top patents by PatentIndex Score
5 records- 0166US8027067B2Method for correcting skew in scanned documentsKONICA MINOLTA LAB USA INC·Filed 2007·Granted Sep 27, 2011·2 cites·5 claims
- 0261US8144361B2Creation and placement of two-dimensional barcode stamps on printed documents for storing authentication informationMING WEI·Filed 2008·Granted Mar 27, 2012·5 cites·30 claims
- 0353US7925045B2Determining document authenticity in a closed-loop processKONICA MINOLTA SYSTEMS LAB INC·Filed 2007·Granted Apr 12, 2011·2 cites·11 claims
- 0443US2009238626A1Creation and placement of two-dimensional barcode stamps on printed documents for storing authentication informationKONICA MINOLTA SYSTEMS LAB INC·Filed 2008·Application pending·0 cites
- 0537US8170275B2Determining document authenticity in a closed-loop processZHAO MARIA QIAN·Filed 2011·Granted May 1, 2012·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →