Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4998579 | Electrode casting system | Eric L. Mawer, Martin Vanderminnen, Robert D. H. Willans, Michael Clark Graham | 1991-03-12 | $9,840,000 |
| 4930757 | Tuyere for metallurgical vessels | Charles A. Sutherland | 1990-06-05 | $10,030,000 |
| 4479854 | Method and apparatus for stripping cathodes | Robert D. H. Willans, Edward G. Baggio, Harold K. Harper, Eric L. Mawer, George H. Reeves | 1984-10-30 | $2,151,000 |
| 4479863 | Cell top insulator | Ronald N. Honey, Clifford J. Krauss, Douwe Ybema | 1984-10-30 | $2,151,000 |