Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5106124 | Convertible coupon or label | James B. Volkman, David A. Wollangk, Kay F. Grosskopf | 1992-04-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5106124 | Convertible coupon or label | James B. Volkman, David A. Wollangk, Kay F. Grosskopf | 1992-04-21 |