Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7843768 | System for communicating location of survivors in mine emergencies | James C. Squire, Gerald A Sullivan | 2010-11-30 |
| 6246957 | Method of dynamically generating navigation route data | John N. Barrer, Joyce R. Forman, Daniel P. Greenbaum | 2001-06-12 |