Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D457780 | Handle for cheese grater | Pamela S. Hannum, Charles E. Buchanan, William J. Calderwood | 2002-05-28 |
| D456142 | Lid with brush | Richard L. Sassone, Nicolaus Bruns, III | 2002-04-30 |
| D450543 | Napkin holder | Pamela S. Hannum, Charles E. Buchanan, William J. Calderwood | 2001-11-20 |