Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11543223 | Ammunition cartridge including an optical primer | Kevin L. Callan, Ryan M. Crittenden, Michael L. Fisher, Wade E. Collins, Francis L. Struemph +1 more | 2023-01-03 |
| 11209257 | Voltage polarity immunity using reverse parallel laser diodes | Kevin L. Callan, Ryan M. Crittenden, Michael L. Fisher, Wade E. Collins, Francis L. Struemph +1 more | 2021-12-28 |
| D876563 | Bubble hockey game | Brian D. Collins, Greg Barbour, Richard Kuypers | 2020-02-25 |
| 9084393 | Lawn equipment attachment | — | 2015-07-21 |