Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9127431 | Manhole security cover | Thomas R. Lanham, Andrew D. Trank, Daniel Corby, Jeffrey R. Sullivan, Eric R. Nolle | 2015-09-08 |
| 8418512 | Universal adjustable security lock for truck tailgates and other clamping applications | Andrew D. Trank, John F. Mondo, David C. Meyer | 2013-04-16 |
| 7930913 | Quick-release ring-type meter lock with keyless reset | David C. Meyer, Jeffrey R. Sullivan | 2011-04-26 |
| 7036405 | Key with retractable pattern | Andrew D. Trank | 2006-05-02 |