Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5768678 | Manganese sulfide composition and its method of production | Kuldip S. Chopra, Stephen F. Claeys, G. Russell Lewis | 1998-06-16 |
| 4213955 | Computerized process and apparatus for use with a submerged arc electric furnace to produce metallurgical products | Wilmer L. Wilbern, William E. Mangan, Paul D. Franson | 1980-07-22 |