Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7770735 | Magnetic separation process for trona | James D. Phillip, William E. Stuble, Donald M. Robertson | 2010-08-10 |
| 7473407 | Magnetic separation process for trona | James D. Phillip, William E. Stuble, Donald M. Robertson | 2009-01-06 |