Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8903137 | System and method for sub-pixel alignment of digital geographic imagery | Hong Guo, David Marwood | 2014-12-02 |
| 8666190 | Local black points in aerial imagery | David Marwood, Hong Guo | 2014-03-04 |