Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5007950 | Compressed, wedged float glass bottom structure | Bert K. Krushinski, Francis A. Radecki, Ronald L. Schwenninger | 1991-04-16 |
| 4696691 | Method of glass batch preheating and liquefying with recycling of particulates | Robert B. Heithoff, Wayne H. Gonzalez | 1987-09-29 |
| 4659356 | Kiln construction | James L. Karraker | 1987-04-21 |
| 4316733 | Apparatus and method for attenuating glass ribbon | Jeffrey S. Yigdall | 1982-02-23 |