Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5916487 | Process for obtaining a photochromic compound and products obtained | Udo Dieckmann, Otto Volker | 1999-06-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5916487 | Process for obtaining a photochromic compound and products obtained | Udo Dieckmann, Otto Volker | 1999-06-29 |