Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479923 | Production of phosphoric acid and additional products from phosphate ore | John B. Sardisco, Erhart K. Drechsel | 1984-10-30 |
| 4450069 | Method for upgrading diene-containing hydrocarbon mixtures | Louis E. Kidwell, Jr. | 1984-05-22 |
| 4435370 | Preparation of monocalcium phosphate and/or phosphoric acid from phosphate rock | Erhart K. Drechsel, John B. Sardisco | 1984-03-06 |
| 4393032 | Production of phosphoric acid and additional products from phosphate ore | Erhart K. Drechsel, John B. Sardisco | 1983-07-12 |
| 4393030 | Upgrading of phosphate ore | John B. Sardisco | 1983-07-12 |
| 4387167 | Sulfur-based adducts and compositions | Louis E. Kidwell, Jr. | 1983-06-07 |
| 4302255 | Sulfur-based adduct and compositions containing the adduct | Louis E. Kidwell, Jr. | 1981-11-24 |