Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12378351 | Polyurethane belt with improved hydrolysis resistance | William W. L. Wu, Joseph R. Duke, Jr. | 2025-08-05 |
| 11976156 | Polyurethane belt with improved hydrolysis resistance | William W. L. Wu, Joseph R. Duke, Jr. | 2024-05-07 |