Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4683029 | Circular solvent extractor | Jerry Brand, Richard Zavada | 1987-07-28 |
| 4408987 | Circular traveling grate machine for process requiring minimum gas leakage | — | 1983-10-11 |