Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5974688 | Apparatus for controlled drying of sludge | James A. Martin, Jr. | 1999-11-02 |
| 5678323 | Apparatus and method for controlled drying of sludge | James A. Martin, Jr. | 1997-10-21 |