Issued Patents 2021
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11156429 | Crossbow with integral cocking worm gear driven spool | James J. Kempf | 2021-10-26 |
| 11131524 | Crossbow with integral cocking and a moving latch | James J. Kempf | 2021-09-28 |
| 11112205 | Projectile launching device with self-timing and without cam lean | James J. Kempf | 2021-09-07 |
| 11022398 | Projectile launching device with self-timing and without cam lean | James J. Kempf | 2021-06-01 |
| 10996018 | Cocking sled for a crossbow | James J. Kempf | 2021-05-04 |
| 10989492 | Archery cam shaft with integrated cable track | James J. Kempf | 2021-04-27 |
| 10948257 | Crossbow with built in cranking mechanism | Dorge O. Huang, James J. Kempf | 2021-03-16 |