Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7520374 | Coin discrimination apparatus and method | Douglas A. Martin, Mark Waechter, Rodrigo Berho | 2009-04-21 |
| 7213697 | Coin discrimination apparatus and method | Douglas A. Martin, Mark Waechter, Rodrigo Berho | 2007-05-08 |
| 6766892 | Coin discrimination apparatus and method | Douglas A. Martin, Mark Waechter, Rodrigo Berho | 2004-07-27 |
| 6520308 | Coin discrimination apparatus and method | Douglas A. Martin, Mark Waechter, Rodrigo Berho | 2003-02-18 |
| 6196371 | Coin discrimination apparatus and method | Douglas A. Martin, Mark Waechter, Rodrigo Berho | 2001-03-06 |