Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12269709 | Tension brake | — | 2025-04-08 |
| 8663042 | Apparatus for driving and braking a shaft | John D. McGourthy, Jr. | 2014-03-04 |
| 8096907 | Apparatus for driving and braking a shaft | John D. McGourthy, Jr. | 2012-01-17 |
| 7364024 | Apparatus for driving and braking a cutting blade of a lawn mower | John D. McGourthy, Jr. | 2008-04-29 |