Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327068 | Method and the reuse of sewage waters of the combined urea-ammonia installations | Vincenzo Lagana | 1982-04-27 |
| 4314077 | Method for the production of urea and purification of water | Vincenzo Lagana' | 1982-02-02 |