Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8561998 | Nitrided piston ring resistant to the propagation of cracks | Gisela Ablas Marques, André Ferrarese, Claudinei José de Oliveira | 2013-10-22 |
| 5614022 | Thermal spraying lining process for piston rings and nozzle for spraying | José Rios Cerqueira Neto, Marcos R. Piccili | 1997-03-25 |