Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5287633 | Coffee roasting process and apparatus | — | 1994-02-22 |
| 4553285 | Plug furnace | David W. Roberts | 1985-11-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5287633 | Coffee roasting process and apparatus | — | 1994-02-22 |
| 4553285 | Plug furnace | David W. Roberts | 1985-11-19 |