Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7404346 | Striking tool with weight forward head | Robert H. Youngren, Daniel M. Eisman, Christopher Aiston, Jack Harkins | 2008-07-29 |
| 6976406 | Striking tool with weight forward head | Robert H. Youngren, Daniel M. Eisman, Christopher Aiston, Jack Harkins | 2005-12-20 |
| 6647829 | Striking tool with weight forward head | Robert H. Youngren, Daniel M. Eisman, Christopher Aiston, Jack Harkins | 2003-11-18 |