Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7579074 | Writable and printable colloidal gold solution | Michael Berkei, Fernando Ibarra, Stephan Haubold | 2009-08-25 |
| 7211135 | Writable and printable colloidal gold solution | Michael Berkei, Fernando Ibarra, Stephan Haubold | 2007-05-01 |