Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6325149 | Method of decreasing the loss of fluid during workover and completion operations | James W. Dobson, Jr., Herman M. Muijs | 2001-12-04 |
| 5629271 | Methods of reducing fluid loss and polymer concentration of well drilling and servicing fluids | James W. Dobson, Jr., Paul D. Kayga | 1997-05-13 |