Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5447200 | Method and apparatus for downhole sand clean-out operations in the petroleum industry | James F. Wilkin, Michael Wawrzynowski | 1995-09-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5447200 | Method and apparatus for downhole sand clean-out operations in the petroleum industry | James F. Wilkin, Michael Wawrzynowski | 1995-09-05 |