Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6106744 | Photochromic pyrano-fused naphthopyrans | Barry Van Gemert | 2000-08-22 |
| 5981634 | Method of preparing photochromic articles | Robert A. Smith | 1999-11-09 |
| 5965680 | Optical resin composition from polyol((meth)acryloyl carbonate) monomer | Robert D. Herold, Charles R. Wiedrich, Ajay Parkhe, Robert A. Smith | 1999-10-12 |
| 5708064 | High refractive index photochromic ophthalmic article | Charles R. Coleman, Robert D. Herold | 1998-01-13 |
| 5246630 | Polymerizable composition | — | 1993-09-21 |
| 5236978 | Resin composition of polyol (allyl carbonate) and allyl terminated aliphatic urethane | John C. Crano | 1993-08-17 |
| 5221721 | Polymerizable composition | — | 1993-06-22 |
| 5200483 | Polyol(allyl carbonate) composiitons and articles prepared there from | — | 1993-04-06 |
| 5077421 | Process for preparing aminofunctional silicone acid | — | 1991-12-31 |