Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6237739 | Intelligent document handling system | Richard A. Mazur, Douglas U. Mennie | 2001-05-29 |
| 5960103 | Method and apparatus for authenticating and discriminating currency | Bradford T. Graves, William J. Jones, Douglas U. Mennie | 1999-09-28 |
| 5909503 | Method and apparatus for currency discriminator and authenticator | Bradford T. Graves, William J. Jones, Douglas U. Mennie | 1999-06-01 |
| 5790693 | Currency discriminator and authenticator | Bradford T. Graves, William J. Jones, Douglas U. Mennie | 1998-08-04 |
| 5640463 | Method and apparatus for authenticating documents including currency | — | 1997-06-17 |