Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4853201 | Recovery of P.sub.2 O.sub.5 values from phosphoric acid hemihydrate crystals | Thomas E. Richards | 1989-08-01 | $5,601,000 |
| RE31629 | Extraction process for purification of phosphoric acid | James L. Bradford | 1984-07-10 | |
| 4284614 | Process for production of high purity phosphoric acid from high alumina phosphate pebble rock | — | 1981-08-18 | $5,218,000 |
| 4277448 | Phosphoric acid process with high circulation rates | John D. Ellis, James H. Moore | 1981-07-07 | $8,177,000 |
| 4260584 | Apparatus useful for wet process phosphoric acid production | John D. Ellis, James H. Moore | 1981-04-07 | $5,270,000 |
| 4243637 | Uranium recovery from pre-treated phosphoric acid | James L. Bradford | 1981-01-06 | $4,710,000 |
| 4196172 | Hemihydrate type phosphoric acid process | John D. Ellis, James H. Moore | 1980-04-01 | $13,586,000 |