Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4372770 | Melting glass with two stage NO.sub.x control | John F. Krumwiede | 1983-02-08 |
| 4270945 | Method of melting flat glass using nitrates to suppress sulfurous emissions | Joseph J. Hammel, Larry J. Shelestak | 1981-06-02 |