Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D601877 | Radio frequency identification trim piece | Ernst Mitchell | 2009-10-13 |
| D569221 | Card reader | Ernst Mitchell | 2008-05-20 |
| D502182 | Electronic key card encoder | Ernst Mitchell, Charles W. Moon, Roger Carlson | 2005-02-22 |