Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643684 | Sender- specified delivery customization | Philip Yu | 2003-11-04 |
| 6591265 | Dynamic behavior-based access control system and method | Thomas D. Erickson, Wendy A. Kellogg, John T. Richards, Philip Yu | 2003-07-08 |