Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4285717 | Method of initiating operation of tubular heat exchanger for preheating pulverous glass batch | — | 1981-08-25 |
| 4285718 | Method of operating tubular heat exchanger for preheating pulverous glass batch | Richard G. Mathias, Robert R. Rough, Sr., Owen M. Small, Sigmund Willinger | 1981-08-25 |