Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6062994 | Reinforced racquet with flat string bed | Raymond L. Mortvedt, Rafael G. Filippini | 2000-05-16 |
| 5919104 | Long string racquets, particularly for racquetball | Raymond L. Mortvedt, Todd Colburn | 1999-07-06 |