Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4238459 | Chemical beneficiation of phosphatic limestone and phosphate rock with .alpha.-hydroxysulfonic acids | John F. Phillips, John F. McCullough | 1980-12-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4238459 | Chemical beneficiation of phosphatic limestone and phosphate rock with .alpha.-hydroxysulfonic acids | John F. Phillips, John F. McCullough | 1980-12-09 |