Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D414515 | Newspaper vending rack | Carol A. Berckenhoff | 1999-09-28 |
| D408862 | Newspaper vending rack | Carol A. Berckenhoff | 1999-04-27 |
| 5531355 | Single vend machine | Harvey G. Kresta | 1996-07-02 |
| 5431300 | Single vend device for a newspaper vending machine | Alan P. Kahanek | 1995-07-11 |
| D349997 | Transit recycling bin | — | 1994-08-23 |
| 5318195 | Single vend device for a newspaper vending machine | Alan P. Kahanek | 1994-06-07 |
| 5216907 | Device for locking a coin control mechanism and insert into the interior of a cabinet of a newspaper rack | — | 1993-06-08 |
| 5036966 | Newspaper vending rack coin box incorporating a retrofit electronic coin mechanism | Douglas Kaspar, David C. Kaspar | 1991-08-06 |
| 4828097 | Triple price setter for totalizer coin mechanism | Harvey G. Kresta | 1989-05-09 |