Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D261348 | Ribbed coffee urn lid | Leo A. Groh, Douglas D. Ludwig, David L. Painter | 1981-10-20 |
| D261215 | Coffee urn lid | Leo A. Groh, Douglas D. Ludwig, David L. Painter | 1981-10-13 |
| D255085 | Yogurt maker | David L. Painter | 1980-05-27 |