Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6220055 | Composite glass article and method of manufacture | Charles P. Duck | 2001-04-24 |
| 5910371 | Composite glass article and method of manufacture | Charles P. Duck | 1999-06-08 |
| 4554258 | Chemical resistant lead-free glass frit compositions | — | 1985-11-19 |
| 4537862 | Lead-free and cadmium-free glass frit compositions for glazing, enameling and decorating | Uriah Horn, Daniel R. Stewart | 1985-08-27 |
| 4446241 | Lead-free and cadmium-free glass frit compositions for glazing, enameling and decorating | Daniel R. Stewart, Uriah Horn | 1984-05-01 |