Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363658 | Process for combined production of metal alloys and zirconium corundum | Nikolai A. Bogdanov, Viktor V. Tregubenko, Nikolai I. Subbotin, Mikhail V. Galkin | 1982-12-14 |
| 4229214 | Process for combined production of ferrosilicozirconium and zirconium corundum | Nikolai P. Lyakishev, Viktor V. Tregubenko, Gennady F. Ignatenko, Nikolai I. Subbotin | 1980-10-21 |