Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6352714 | Method of producing a metal nutrient for an animal feed | Paul R. Erickson | 2002-03-05 |
| 5401833 | Method and apparatus for treating chrome leather waste | Paul R. Erickson, Jeffrey M. Waszgis | 1995-03-28 |