Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954548 | Proppant for hydraulic fracturing of oil and gas wells | Gabriel Warwick Kerr de Paiva Cortes, Guilherme De Paiva Cortes | 2011-06-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954548 | Proppant for hydraulic fracturing of oil and gas wells | Gabriel Warwick Kerr de Paiva Cortes, Guilherme De Paiva Cortes | 2011-06-07 |