Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8128224 | Injection molding of lens | Alan D. Maki, Eric Woelfle, Darrell Kroulik, Thomas J. Moravec, Martin L. Hage | 2012-03-06 |
| 7077985 | Injection molding of lens | Alan D. Maki, Eric Woelfle, Darrell Kroulik, Thomas J. Moravec, Martin L. Hage | 2006-07-18 |
| 6420514 | Transparent polysulfone articles with reduced spurious coloration | Martin L. Hage | 2002-07-16 |
| 6337409 | Photochromic naphthopyran compounds | Frank J. Hughes | 2002-01-08 |
| 5759450 | Photochromic naphthopyran compounds | Frank J. Hughes | 1998-06-02 |
| 5705102 | Photochromic spironaphthopyran compounds | Frank J. Hughes | 1998-01-06 |
| 5628935 | Photochromic spironaphthopyran compounds | Frank J. Hughes | 1997-05-13 |
| 5531935 | Photochromic naphthopyran compounds | Frank J. Hughes | 1996-07-02 |