Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7410433 | Bat handle with optimal damping | Douglas G. Guenther, Mark A. Fritzke, Bradley L. Gaff | 2008-08-12 |
| 7097578 | Bat having a flexible handle | Douglas G. Guenther, Mark A. Fritzke, Bradley L. Gaff | 2006-08-29 |
| 7011588 | Insert for a bat having an improved seam orientation | Mark A. Fritzke, William Jerome Garnett | 2006-03-14 |
| 6945886 | Bat with composite handle | Douglas G. Guenther, Mark A. Fritzke | 2005-09-20 |
| 6743127 | Bat with composite handle | Douglas G. Guenther, Mark A. Fritzke | 2004-06-01 |
| 6733404 | Insert for a bat having an improved seam orientation | Mark A. Fritzke, William Jerome Garnett | 2004-05-11 |
| 6702698 | Bat with composite handle | Douglas G. Guenther, Mark A. Fritzke | 2004-03-09 |
| 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 |
| 6251034 | Ball bat | Mark A. Fritzke, Steven J. Maier | 2001-06-26 |
| 5954602 | Bat end plug and method for making the same | Mark A. Fritzke | 1999-09-21 |
| 5899823 | Ball bat with insert | — | 1999-05-04 |
| 5863261 | Golf club head with elastically deforming face and back plates | — | 1999-01-26 |
| 5415398 | Softball bat | — | 1995-05-16 |