Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591242 | Visit verification method and system | Edward W. Karp, David Fine, Jonathan Fine, Cedric F. Walker | 2003-07-08 |
| 6154727 | Visit verification | Edward W. Karp, David Fine, Jonathan Fine, Cedric F. Walker | 2000-11-28 |