Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7458325 | Process and apparatus for thermally treating bio-solids | Trudy J. Hopper | 2008-12-02 |
| 5195887 | Remediation of hydrocarbons from soils, sand and gravel | Charles R. Peterson, Gregory Peterson, Trudy J. Weichlein | 1993-03-23 |