Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162587 | Piston ring and method for manufacturing a piston ring | Thomas J. Smith, Andrea C. PAUL | 2021-11-02 |
| 10323747 | Piston ring and method for manufacturing a piston ring | Thomas J. Smith, Andrea C. PAUL | 2019-06-18 |