Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6993580 | Method and system for sharing end user information on network | David Isherwood, Kaj Nygren, Peter Ritz | 2006-01-31 |
| 6691914 | Method and system for directing end user to network location of provider based on user-provided codes | David Isherwood, Kaj Nygren, Peter Ritz | 2004-02-17 |