Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5007950 | Compressed, wedged float glass bottom structure | Robert A. Lawhon, Francis A. Radecki, Ronald L. Schwenninger | 1991-04-16 |
| 4704155 | Heating vessel lid construction for a glass melting furnace | Joseph M. Matesa, Arthur C. Knickerbocker | 1987-11-03 |