Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8463644 | Network-based sweepstakes system and method | Frank William Daugherty, Darrel E. Herbst, Lukas C. Oberhuber | 2013-06-11 |
| 7634424 | Network-based sweepstakes systems and method | Frank William Daugherty, Darrel E. Herbst, Lukas C. Oberhuber | 2009-12-15 |