Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6477251 | Apparatus and method for securely determining an outcome from multiple random event generators | Robert C. Angell, Scott Tillotson | 2002-11-05 |
| 6419157 | Methods for processing security documents | Michael A. Ehrhart, Robert M. Hussey, Todd A. Dueker, Cayetano Sanchez, III, John C. Abraitis +4 more | 2002-07-16 |
| 6405929 | Material detection systems for security documents | Michael A. Ehrhart, Robert M. Hussey, Todd A. Dueker, Cayetano Sanchez III, John C. Abraitis | 2002-06-18 |
| 6368219 | System and method for determining whether wagers have been altered after winning game numbers are drawn | Thomas K. Oram | 2002-04-09 |