Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4942986 | Pressurized tundish for controlling a continuous flow of molten metal | Thomas W. Lewis, Paul E. Hamill, Jr., Mustafa R. Ozgu, Ralph C. Padfield, Donovan N. Rego | 1990-07-24 |
| 4741515 | Apparatus for introducing gas into a metallurgical vessel | Sudhir Sharma, Philip D. Stelts | 1988-05-03 |