Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7353384 | Collapsing chained credentials | Paul Christopher Leyland | 2008-04-01 |
| 6720922 | Radio-frequency badge for location measurement | Lyndsay Williams | 2004-04-13 |
| 6079021 | Method and apparatus for strengthening passwords for protection of computer systems | Martin Abadi, Thomas Mark Angus Lomas | 2000-06-20 |
| 5493283 | Locating and authentication system | Andrew Hopper, Roy Want, David J. Wheeler | 1996-02-20 |
| 5402469 | Carrier locating system | Andrew Hopper, Roy Want, David J. Wheeler | 1995-03-28 |
| 5088091 | High-speed mesh connected local area network | Michael D. Schroeder, Charles P. Thacker, Andrew Birrell, Thomas L. Rodeheffer, Edwin H. Satterthwaite, Jr. +1 more | 1992-02-11 |