Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8423896 | Generating vector geometry from raster input for semi-automatic land planning | Mark Davis, Richard D. Howard | 2013-04-16 |
| 5987380 | Hand-held GPS-mapping device | Douglas J. Backman, Frank D. Defalco, William R. Michalson | 1999-11-16 |
| 5902347 | Hand-held GPS-mapping device | Douglas J. Backman, Frank D. Defalco, William R. Michalson | 1999-05-11 |