Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5539003 | Phosphonic acid based ion exchange resins | E. Philip Horwitz, Spiro D. Alexandratos, Ralph C. Gatrone | 1996-07-23 |
| 5449462 | Phosphonic acid based exchange resins | E. Philip Horwitz, Spiro D. Alexandratos, Ralph C. Gatrone | 1995-09-12 |
| 5281631 | Phosphonic acid based ion exchange resins | E. Philip Horwitz, Spiro D. Alexandratos, Ralph C. Gatrone | 1994-01-25 |