Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9732852 | Three-piece oil ring for internal combustion engines, expanding element, and annular element | — | 2017-08-15 |
| 9702461 | Piston ring | Gisela Ablas Marques | 2017-07-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9732852 | Three-piece oil ring for internal combustion engines, expanding element, and annular element | — | 2017-08-15 |
| 9702461 | Piston ring | Gisela Ablas Marques | 2017-07-11 |