Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5712347 | Grafted methylenediphosphonate ion exchange resins | Andrzej W. Trochimcznk, Spiro D. Alexandratos, E. Philip Horwitz | 1998-01-27 |
| 5678242 | Membrane extraction with thermodynamically unstable diphosphonic acid derivatives | Earl P. Horwitz, KENNETH L NASH | 1997-10-14 |
| 5618851 | Grafted methylenediphosphonate ion exchange resins | Andrzej W. Trochimcznk, Spiro D. Alexandratos, E. Philip Horwitz | 1997-04-08 |
| 5539003 | Phosphonic acid based ion exchange resins | E. Philip Horwitz, Spiro D. Alexandratos, Ronato Chiarizia | 1996-07-23 |
| 5449462 | Phosphonic acid based exchange resins | E. Philip Horwitz, Spiro D. Alexandratos, Ronato Chiarizia | 1995-09-12 |
| 5332531 | Extracting metal ions with diphosphonic acid, or derivative thereof | Earl P. Horwitz, KENNETH L NASH | 1994-07-26 |
| 5281631 | Phosphonic acid based ion exchange resins | E. Philip Horwitz, Spiro D. Alexandratos, Ronato Chiarizia | 1994-01-25 |
| 4741857 | Method of purifying neutral organophosphorus extractants | E. Philip Horwitz, Renato Chiarizia | 1988-05-03 |
| 4462819 | Urease inhibited urea based fertilizer compositions containing organo boron acid compounds | Michael Van Der Puy, Martin A. Robinson, Larry L. Hendrickson | 1984-07-31 |