Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5070225 | Method for overhead submerged arc welding and apparatus to implement the same | Boris E. Paton, Vladimir V. Podgaetsky, Pavel A. Varenchuk, Nikolai T. Privalov, Valentin D. Kovalev +1 more | 1991-12-03 |
| 4994645 | Apparatus for overhead submerged-arc welding | Pavel A. Varenchuk, Valentin D. Kovalev, Mikhail Ivanenko, Nikolai T. Privalov, Anatoly V. Zalevsky +1 more | 1991-02-19 |