Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8551923 | Foamed spacer fluids containing cement kiln dust and methods of use | James Robert Benkley, Joseph V. Spencer, Zachary Robert Kranz, D. Chad Brenneis, Craig W. Roddy | 2013-10-08 |
| 8505629 | Foamed spacer fluids containing cement kiln dust and methods of use | James Robert Benkley, Joseph V. Spencer, Zachary Robert Kranz, D. Chad Brenneis, Craig W. Roddy | 2013-08-13 |