Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12397390 | Belt sander | Jeffrey S. Holly, Joseph G. Bloomfield, David A. Bierdeman, Logan M. Hietpas, Adam N. Carter +4 more | 2025-08-26 |
| 12330286 | Oscillating power tool with adjustable angular amplitude of oscillation | David A. Bierdeman | 2025-06-17 |
| 12186880 | Oscillating power tool | Jeffrey S. Holly, Jacob N. Zimmerman, David A. Bierdeman, Andrew R. Schauer, You Gen Liu | 2025-01-07 |
| 12097603 | Oscillating power tool with lighting assembly | Jeffrey S. Holly, Jacob N. Zimmerman, David A. Bierdeman, Andrew R. Schauer, Michael J. Panetta +1 more | 2024-09-24 |
| 12070809 | Band saw | Kevin Staszak, David A. Bierdeman, Kevin R. Gee | 2024-08-27 |
| 12005560 | Oscillating power tool with adjustable angular amplitude of oscillation | David A. Bierdeman | 2024-06-11 |