Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5641887 | Extraction of metals in carbon dioxide and chelating agents therefor | Alan J. Russell | 1997-06-24 |
| 5631327 | Polymers capable of reversibly complexing acid gases and a method of using the same | — | 1997-05-20 |