Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12385396 | Tension indicator for a rock bolt | Osvaldo VALLATI, Mietek Rataj | 2025-08-12 |
| 12203372 | Visual indicator for correct torsion of a rock bolt | Mieczyslaw Rataj, Osvaldo VALLATI | 2025-01-21 |