Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7415867 | Golf shaft and club flex neutralization/matching and method for manufacturing same | David Patrick Spencer | 2008-08-26 |
| 6895680 | Golf head and shaft with flex neutralization and method for manufacturing same | David Patrick Spencer, Max Lee | 2005-05-24 |