Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7779257 | System and method for constraint resolution | Christopher Preist, Javier Esplugas Cuadrado, David Trastour | 2010-08-17 |
| 7676677 | Digital signature method and apparatus | Liqun Chen | 2010-03-09 |