Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644064 | Derivatives of polyethers and of pentacyclic heterocycles, their polymers and their applications, particularly to the complexing of metal ions | — | 1997-07-01 |
| 5605993 | Derivatives of polyethers and of pentacyclic heterocycles, their polymers and their applications, particularly to the complexing of metal ions | — | 1997-02-25 |