DN

Donald E. Norris

Igt: 1 patents #880 of 1,220Top 75%
Overall (All Time): #1,493,327 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9659444 Gaming system and method for providing cashable and non-cashable credits upon cash-out 2017-05-23
9499177 System and method of modifying the friction of railroad tracks John A. Wade, Thomas L. Jennings 2016-11-22
5884513 Combination coin and key holder 1999-03-23