Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9922486 | Unique identification of coin or other object | Yann Boutant | 2018-03-20 |
| 9558544 | Method and apparatus for authentication of a coin or other manufactured item | Yann Boutant | 2017-01-31 |
| 9540735 | Zincating aluminum | Taixiang Jiang, Xianyao Li | 2017-01-10 |
| 9447515 | Control of electromagnetic signals of coins through multi-ply plating technology | — | 2016-09-20 |
| 7700158 | Method of printing an image on a metallic surface, particularly on a coin surface | — | 2010-04-20 |
| 6044541 | Method of making bimetallic coins or blanks | — | 2000-04-04 |
| 5151167 | Coins coated with nickel, copper and nickel and process for making such coins | Maria Dilay | 1992-09-29 |
| 5139886 | Coins coated with nickel, copper and nickel | Maria Dilay | 1992-08-18 |
| 5085692 | Recovery of silver values from chlorides including silver chloride | Christopher A. Pickles, James M. Toguri, Janet G. Clark | 1992-02-04 |