Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12008423 | Two-dimensional codes hidden as scattered line segments | Roger D. Hersch | 2024-06-11 |
| 11968345 | Juxtaposed clustered dispersed dot halftoning | Roger D. Hersch | 2024-04-23 |
| 10628647 | Authentication and tracking by hidden codes | Roger D. Hersch | 2020-04-21 |
| 8610958 | Synthesis of authenticable color multi-halftone images | Roger D. Hersch | 2013-12-17 |
| 8355169 | Synthesis of authenticable luminescent color halftone images | Roger D. Hersch | 2013-01-15 |
| 7584145 | System and method for providing price validation for market makers in over the counter markets | David Lu, Patrick William Howard, Sean Michael Gilman, Cary David Rosenwald, Richard Hartheimer | 2009-09-01 |