DH

David Harpold

Overall (All Time): #1,189,199 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10102683 Audio/video automated payment facility Mark Pratt 2018-10-16
8799090 Audio/video automated payment facility Mark Pratt 2014-08-05
8352313 Audio/video automated payment facility Mark Pratt 2013-01-08
7711601 Audio/video automated payment facility Mark Pratt 2010-05-04