Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5327984 | Method of controlling cuttings accumulation in high-angle wells | Marco Rasi | 1994-07-12 |
| 5316091 | Method for reducing occurrences of stuck drill pipe | Marco Rasi, Mark W. Biegler | 1994-05-31 |