Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6267936 | Method for effecting solvent extraction of metal ions using hydrocarbon soluble aminomethylene phosphonic acid compounds | Carlos Nogueira, Michael Ehle, Knut Oppenlander | 2001-07-31 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6267936 | Method for effecting solvent extraction of metal ions using hydrocarbon soluble aminomethylene phosphonic acid compounds | Carlos Nogueira, Michael Ehle, Knut Oppenlander | 2001-07-31 |