Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8785866 | Compositions having multiple responses to excitation radiation and methods for making same | Mark J. Hampden-Smith, Richard Einhorn | 2014-07-22 |
| 8257612 | Compositions having multiple responses to excitation radiation and methods for making same | Mark J. Hampden-Smith, Richard Einhorn | 2012-09-04 |
| 7922936 | Luminescent compositions, methods for making luminescent compositions and inks incorporating the same | Mark J. Hampden-Smith, Richard Einhorn, Darryl Williams | 2011-04-12 |