Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8941388 | Auto-calibrating proximity sensor for retail display security system | Walter Raczynski, Charles Zimnicki | 2015-01-27 |
| 8872660 | Powered item attachment device | Walter V. Raczynski V, Charles Zimnicki | 2014-10-28 |
| 8659426 | Retail security display system | Walter Raczynski, Charles Zimnicki | 2014-02-25 |