Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7938186 | Casing shoes and methods of reverse-circulation cementing of casing | Anthony M. Badalamenti, Karl W. Blanchard, Ronald R. Faul, Michael G. Crowder, Henry E. Rogers +2 more | 2011-05-10 |