Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7993755 | Photochromic molding compositions and articles produced therefrom | Ralf Hala, Botho Hoffmann | 2011-08-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7993755 | Photochromic molding compositions and articles produced therefrom | Ralf Hala, Botho Hoffmann | 2011-08-09 |