Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6182817 | Field replaceable helical flight | Franklin G. Rinker, Daniel A. Molnar | 2001-02-06 |
| 5895215 | Charging apparatus for a rotary hearth furnance | Franklin G. Rinker, Daniel A. Molnar, Carl L. Porter | 1999-04-20 |