| 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 |