Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5855351 | Easel | David A. Cziraky, Richard A. Tarozzi | 1999-01-05 |
| D374467 | Combined toy boat and container for writing instruments | David A. Cziraky, Heather D. Semple | 1996-10-08 |
| D356334 | Writing surfaces and container for supplies | Tracy D. Kroop, Charles W. Dietterich, Robert S. Volk | 1995-03-14 |
| 5388689 | Writing surfaces and container for supplies | Tracy D. Kroop, Charles W. Dietterich, Robert S. Volk | 1995-02-14 |