Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6500486 | Controlled tintability on mar-resistant coatings | Elaine M. Anderson, Martin L. Hage, Luben Koev | 2002-12-31 |
| 6478988 | Photochromic substituted naphthopyran compounds | J. Thomas Ippoliti | 2002-11-12 |
| 6337409 | Photochromic naphthopyran compounds | Edward A. Travnicek | 2002-01-08 |