Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5006144 | Melting glass with oxidation control and lowered emissions | William C. Harrell | 1991-04-09 |
| 4919698 | Avoidance of nickel sulfide stones in a glass melting operation | — | 1990-04-24 |
| 4798616 | Multi-stage process and apparatus for refining glass or the like | David R. Haskins | 1989-01-17 |