Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7939474 | Wellbore fluids containing additives for removing a filter cake and methods of using the same | Matthew E. Blauch, David W. Ritter, R. Ashley Donaldson | 2011-05-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7939474 | Wellbore fluids containing additives for removing a filter cake and methods of using the same | Matthew E. Blauch, David W. Ritter, R. Ashley Donaldson | 2011-05-10 |