Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9844249 | Age hardenable clad metal having gold fineness and a surface layer with enhanced resistance to tarnish, scratching, and wear | Grigory Raykhtsaum | 2017-12-19 |
| 9655414 | Age hardenable clad metal having silver fineness and a surface layer with enhanced resistance to tarnish, scratching, and wear | Grigory Raykhtsaum | 2017-05-23 |