Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5337825 | Method of oil well productivity increase | Leon M. Marmorstein, Ignaty M. Petuhov, Vladimir S. Sidorov, Valentin Grebennikov | 1994-08-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5337825 | Method of oil well productivity increase | Leon M. Marmorstein, Ignaty M. Petuhov, Vladimir S. Sidorov, Valentin Grebennikov | 1994-08-16 |