Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6875040 | Lockable electric power cord adapter | Michael O'Keefe, John Witzigreuter | 2005-04-05 |
| 6839449 | Key identification system | John Clayton Campbell, George L. Heredia | 2005-01-04 |
| 6839451 | Key identification system | John Clayton Campbell, George L. Heredia | 2005-01-04 |