Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4285718 | Method of operating tubular heat exchanger for preheating pulverous glass batch | John D. Novak, Robert R. Rough, Sr., Owen M. Small, Sigmund Willinger | 1981-08-25 |