Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5793882 | System and method for accounting for personnel at a site and system and method for providing personnel with information about an emergency site | John T. Piatek, Fredrick M. Muller, Wayne D. Hanna | 1998-08-11 |
| 5596652 | System and method for accounting for personnel at a site and system and method for providing personnel with information about an emergency site | John T. Piatek, Fredrick M. Muller, Wayne D. Hanna | 1997-01-21 |