Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D420412 | Training device for attachment to racquet strings | James K. Buck, Michael Anger | 2000-02-08 |
| 5944622 | Strung racquet training weight system | James K. Buck, Michael Anger | 1999-08-31 |