Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7251384 | Optical fiber pH sensor | Manoel Feliciano da Silva Junior, Fabio Pereira Ribeiro, Luiz Carlos Guedes Valente, Arthur Martins Barbosa Braga, Adriana Lucia Cerri Triques | 2007-07-31 |
| 6626242 | Storable composition and slurries and use of same for cementing oil and gas wells | Cristiane Richard De Miranda, Gilson Campos | 2003-09-30 |
| 6613142 | Storable compositions and slurries and use of same for cementing oil and gas wells | Cristiane Richard De Miranda, Gilson Campos | 2003-09-02 |