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Donald W. Kemp

Mastercard: 1 patents #147 of 534Top 30%
📍 O'Fallon, MO: #33 of 93 inventorsTop 40%
🗺 Missouri: #751 of 2,681 inventorsTop 30%
Overall (2020): #487,860 of 565,922Top 90%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10685384 Methods and systems for tracking a price change for a purchase made using a transaction card Christopher P. Aguas, Brian O'Neale Bettinger, Thomas G. Romary, Hugh Herrick Birch 2020-06-16