Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9404166 | Composition and method for removing metal contaminants | Charles R. Landis, William Walter Shumway | 2016-08-02 |
| 8357303 | Method for removing metal contaminants from a metal containing solution | Charles R. Landis, William Walter Shumway | 2013-01-22 |