Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D637632 | Swing hammer for particulate size reduction system | William Schmitz, Craig A. Penterson | 2011-05-10 |
| 7913941 | Crusher block assembly for particulate size reduction system | William Schmitz, Richard N. Du Verger, Craig A. Penterson, Qingsheng Lin | 2011-03-29 |