Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252303 | Tamper-evident enclosure for zippers included on security carriers | Donald R. Casterline, Robert J. Cohn | 2025-03-18 |
| 11288909 | Secure collection device for paper ballots | Donald R. Casterline, Christopher M. Buck | 2022-03-29 |
| 10210691 | Locking ballot depository with baffle | Donald R. Casterline | 2019-02-19 |
| 8245905 | Locking ballot receptacle | Robert J. Cohn | 2012-08-21 |
| 7273139 | Collapsible, wheeled security luggage | — | 2007-09-25 |
| 5916280 | Brief case book | — | 1999-06-29 |
| D299659 | Combined pen and holder | — | 1989-01-31 |