Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12377932 | Ergonomic bicycle handlebar and cycling systems | Donald A. Sheff, Damon Campbell, William L. Nighan, Jr. | 2025-08-05 |
| 11919601 | Ergonomic bicycle handlebar and cycling systems | Donald A. Sheff, Damon Campbell, William L. Nighan, Jr. | 2024-03-05 |
| 11505275 | Ergonomic handlebar systems | Don Sheff, Damon Campbell | 2022-11-22 |
| 11040752 | Ergonomic bicycle handlebar systems | Don Sheff, Damon Campbell | 2021-06-22 |