Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879413 | Process for the preparation of a solid adduct of sulfuric acid and urea | Hansjorg Buser | 1989-11-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879413 | Process for the preparation of a solid adduct of sulfuric acid and urea | Hansjorg Buser | 1989-11-07 |