Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6964624 | Bumper guard for a sports racquet | Walter Shen, Po-Jen Cheng | 2005-11-15 |
| 6537165 | Game racquet with separate head and handle portions | Martin Mockenhaupt, Po-Jen Cheng | 2003-03-25 |
| 6422958 | Frame for a game racquet formed by filament winding | Charles Tricou, David D. Price | 2002-07-23 |
| 5575875 | Filament wound fiber reinforced thermoplastic frame for a game racquet | David L. Brittingham, David A. Pollock | 1996-11-19 |
| 5575881 | Filament wound frame for a game racquet | Louis J. Keester, David L. Brittingham | 1996-11-19 |
| 5540877 | Method of making a continous fiber reinforced resin transfer molded frame for a game racquet | David L. Brittingham, Charles Tricou | 1996-07-30 |