Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8065370 | Proofs to filter spam | Geoffrey J. Hulten, Gopalakrishnan Seshadrinathan, Joshua T. Goodman, Robert Pengelly, Robert L. Rounthwaite +1 more | 2011-11-22 |
| 7979703 | Determining the reputation of a sender of communications | Carl M. Ellison, Elissa E. S. Murphy | 2011-07-12 |
| 7904517 | Challenge response systems | Nina Kang, Joshua T. Goodman, Robert L. Rounthwaite, Josh Benaloh, Elissa E. S. Murphy +3 more | 2011-03-08 |