Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497631 | Ball bat | Mark A. Fritzke | 2002-12-24 |
| 6482114 | Bat and method of manufacturing | Mark A. Fritzke | 2002-11-19 |
| 6398675 | Bat with elastomeric interface | Mark A. Fritzke | 2002-06-04 |
| 6383101 | Ball bat | Mark A. Fritzke, Steven J. Maier | 2002-05-07 |