Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11506461 | Quick change magazine coupler | Leif Strom, David J. Spykerman | 2022-11-22 |
| 9383162 | Adjustable firearm | David J. Spykerman, Michael Przemyslaw Szczepkowski | 2016-07-05 |