DK

David C Koelling

DI Digideal: 2 patents #8 of 13Top 65%
Overall (All Time): #2,220,077 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6481718 Method of playing blackjack with a side wager — 2002-11-19
6158741 Method of playing blackjack with a side wager — 2000-12-12