Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4470457 | Device for the transfer of plugging and grouting materials to, and their processing at, a pre-set level in a well | Nikolai K. Lipatov, Gennady V. Patrushev, Arian M. Yakovlev, Lev A. Tereschenko, Boris J. Pyakkonen | 1984-09-11 |