Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5989435 | Method for magnetically filtering wastewaters containing oil-coated mill scale | Stewart T. Herman, Robert L. Greenawalt | 1999-11-23 |
| 5766450 | Apparatus for magnetically filtering wastewaters containing oil-coated mill scale | Stewart T. Herman, Robert L. Greenawalt | 1998-06-16 |