Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11629928 | Cranking mechanism | James J. Kempf | 2023-04-18 |
| 11499792 | Projectile launching device with self-timing and without cam lean | James J. Kempf | 2022-11-15 |
| 11378350 | Projectile launching device with self-timing and without cam lean | James J. Kempf | 2022-07-05 |
| 11371795 | Projectile launching device with self-timing and without cam lean | James J. Kempf | 2022-06-28 |
| 11365950 | Spring loaded accessory mount and means | James J. Kempf, Randy Kitts | 2022-06-21 |
| 11346632 | Cranking mechanism | James J. Kempf | 2022-05-31 |
| 11268781 | Crossbow with integral cocking worm gear driven spool | James J. Kempf | 2022-03-08 |
| 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 |
| 10690436 | Crossbow with integral cocking and a moving latch assembly | James J. Kempf | 2020-06-23 |
| 10514227 | Multi-draw weight archery bow with cable timing | James J. Kempf | 2019-12-24 |
| 10458743 | Crossbow with built in cocking device | James J. Kempf, Dorge O. Huang | 2019-10-29 |
| 10458742 | Projectile launching device with self-timing and without cam lean | James J. Kempf | 2019-10-29 |
| 10408560 | Shooting bow with reduced limb travel | James J. Kempf | 2019-09-10 |
| 10359254 | Crossbow with built in electric cocking | James J. Kempf, Dorge O. Huang | 2019-07-23 |
| 10215522 | Adjustable trigger pull for a crossbow | James J. Kempf | 2019-02-26 |
| 10139189 | Multi-draw weight archery bow with cable timing | James J. Kempf | 2018-11-27 |
| 10139191 | Shooting bow with reduced limb travel | James J. Kempf | 2018-11-27 |
| 10126089 | Shooting bow with reduced limb travel | James J. Kempf | 2018-11-13 |
| 10066894 | Silent safety for a crossbow | James J. Kempf | 2018-09-04 |