| 7303134 |
Lottery game tickets and methods for making same |
Michael A. Ehrhart, Robert M. Hussey, Cayetano Sanchez, III, Walter Szrek, John C. Abraitis +4 more |
2007-12-04 |
| 6752319 |
Lottery game tickets and methods for making same |
Michael A. Ehrhart, Robert M. Hussey, Cayetano Sanchez, III, Walter Szrek, John C. Abraitis +4 more |
2004-06-22 |
| 6419157 |
Methods for processing security documents |
Michael A. Ehrhart, Robert M. Hussey, Cayetano Sanchez, III, Walter Szrek, John C. Abraitis +4 more |
2002-07-16 |
| 6405929 |
Material detection systems for security documents |
Michael A. Ehrhart, Robert M. Hussey, Cayetano Sanchez III, Walter Szrek, John C. Abraitis |
2002-06-18 |
| 6304660 |
Apparatuses for processing security documents |
Michael A. Ehrhart, Robert M. Hussey, Cayetano Sanchez, III, Walter Szrek, John C. Abraitis |
2001-10-16 |
| 6186404 |
Security document voiding system |
Michael A. Ehrhart, Robert M. Hussey, Cayetano Sanchez, III, Walter Szrek, John C. Abraitis +4 more |
2001-02-13 |
| 6155491 |
Lottery game ticket processing apparatus |
Michael A. Ehrhart, Robert M. Hussey |
2000-12-05 |