Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886648 | Process for the recovery of germanium from solutions that contain it | Francisco Javier Sitges Menendez, Fernando M. S. Menendez, Francisco A. Tamargo, Luis P. Lorenzo, Matias R. Valcarcel +1 more | 1989-12-12 |