Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11232668 | Coin processing devices and methods | John R. Blake, Douglas U. Mennie | 2022-01-25 |
| 7018286 | Coin holding device for filling coin cassettes | John R. Blake, Timothy L. Esterbrook, Douglas U. Mennie, Don T. Lambert, John S. Lykowski | 2006-03-28 |