Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5337825 | Method of oil well productivity increase | Leon M. Marmorstein, Ignaty M. Petuhov, Vladimir S. Sidorov, Piotr A. Aleksandrov | 1994-08-16 |
| 5291950 | Method of well treatment | — | 1994-03-08 |