Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4737244 | Zirconium and hafnium tetrachloride separation by extractive distillation with molten zinc chloride lead chloride solvent | David F. McLaughlin | 1988-04-12 |
| 4637831 | Process for reduction of zirconium, hafnium or titanium using a zinc or tin seal | Young-Jun Kwon | 1987-01-20 |
| 4613366 | Continuous reactive metal reduction using a salt seal | Young-Jun Kwon | 1986-09-23 |