Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7285515 | Compositions of oil-based biodegradable drilling fluids and process for drilling oil and gas wells | José Goncalves, Átila Fernando Lima Aragäo | 2007-10-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7285515 | Compositions of oil-based biodegradable drilling fluids and process for drilling oil and gas wells | José Goncalves, Átila Fernando Lima Aragäo | 2007-10-23 |