Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6293124 | Refrigerated apparatus | David E. Roth, James D. Woltz | 2001-09-25 |
| 6244067 | Refrigerated serving device | David E. Roth, James D. Woltz | 2001-06-12 |
| 5722254 | Refrigerated serving device | David E. Roth, James D. Woltz | 1998-03-03 |