Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7976769 | Method of manufacturing a ceramic honeycomb structure | Tonia Havewala Fletcher, Christopher John Malarkey | 2011-07-12 |
| 6811727 | Ophthalmic filter materials | David J. Kerko, Brent M. Wedding | 2004-11-02 |
| 6606885 | Infrared, glass polarizer and method | Michael D. Harris, William E. Horsfall, David J. Kerko | 2003-08-19 |
| 6363748 | Method of making protective filter lens | David J. Kerko, Brent M. Wedding | 2002-04-02 |
| 6197711 | Protective filter lens | David J. Kerko, Brent M. Wedding | 2001-03-06 |
| 6177371 | Photochromic glass and lens | David J. Kerko, Brent M. Wedding | 2001-01-23 |
| 6165922 | Photochromic glass and lens | David J. Kerko, Brent M. Wedding | 2000-12-26 |
| 6037283 | Plus power, photochromatic glass lenses | David J. Kerko | 2000-03-14 |
| 5973865 | Ophthalmic filter materials | David J. Kerko, Brent M. Wedding | 1999-10-26 |
| 5729381 | Glasses for laser protection | David J. Kerko, JoAnn Morrell | 1998-03-17 |
| 5627114 | Laser eyewear protection | David J. Kerko, JoAnn Morrell | 1997-05-06 |
| 5540745 | Glasses for laser protection | David J. Kerko, JoAnn Morrell | 1996-07-30 |
| 5534041 | Method of making laser eyewear protection | David J. Kerko, JoAnn Morrell | 1996-07-09 |
| 5482902 | Brown-photochromic glasses | Thomas C. Claunch, David J. Kerko | 1996-01-09 |
| 4979976 | Making colored photochromic glasses | David J. Kerko | 1990-12-25 |