Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6936725 | Photochromic compounds | Manfred Melzig | 2005-08-30 |
| 6933325 | High index curable photochromic composition and its process | Qiang Zheng, Donald S. Nelson, Jr., Charles William Carper, Jr., Manfred Melzig, Herbert Schuster | 2005-08-23 |