Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7757765 | Downhole preparation and use of thixotropic cement slurries | Robert C. Nelson, Robert Bucher | 2010-07-20 |
| 7640983 | Method to cement a perforated casing | Robert Bucher, Mike Martin | 2010-01-05 |