Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8075429 | Racquet stringing machine | William D. Severa, John B. Lyons, Robert T. Kapheim, Erik B. van der Pols | 2011-12-13 |
| 8066593 | Customized racquet stringing system and method | William D. Severa, John B. Lyons, Robert T. Kapheim | 2011-11-29 |
| 7887444 | Racquet having articulating grommet assemblies | William D. Severa, Donald G. Loeffler, Cory R. Boudreau | 2011-02-15 |
| D631521 | Sports racquet | William D. Severa, Donald G. Loeffler, Tong Jin Kim, Ravi Itiravivong | 2011-01-25 |