Inventor · disambiguated record
James J. Kempf
Also filed as: KEMPF JAMES · KEMPF JAMES J · KEMPF JAMES JAY
62 granted patents·4 pending applications·1,794 citations·filing 1993–2024
99Inventor score
Top patents by PatentIndex Score
66 records- 0199US9513080B1Reverse style crossbowKEMPF JAMES J·Filed 2016·Granted Dec 6, 2016·70 cites·16 claims
- 0299US9243861B1Shooting bow with pulleysKEMPF JAMES J·Filed 2015·Granted Jan 26, 2016·70 cites·20 claims
- 0398US11371795B1Projectile launching device with self-timing and without cam leanARCHERY INNOVATORS·Filed 2021·Granted Jun 28, 2022·27 cites·22 claims
- 0498US11156429B1Crossbow with integral cocking worm gear driven spoolARCHERY INNOVATORS·Filed 2020·Granted Oct 26, 2021·21 cites·10 claims
- 0598US11131524B1Crossbow with integral cocking and a moving latchARCHERY INNOVATORS LLC·Filed 2020·Granted Sep 28, 2021·23 cites·14 claims
- 0698US11112205B1Projectile launching device with self-timing and without cam leanARCHERY INNOVATORS LLC·Filed 2021·Granted Sep 7, 2021·26 cites·18 claims
- 0798US11022398B1Projectile launching device with self-timing and without cam leanARCHERY INNOVATORS·Filed 2020·Granted Jun 1, 2021·31 cites·18 claims
- 0898US10458743B1Crossbow with built in cocking deviceKEMPF JAMES J·Filed 2018·Granted Oct 29, 2019·41 cites·15 claims
- 0998US9829268B1Projectile launching device with self-timing and without cam leanKEMPF JAMES J·Filed 2017·Granted Nov 28, 2017·50 cites·10 claims
- 1098US9234719B1Shooting bow with pulleysKEMPF JAMES J·Filed 2014·Granted Jan 12, 2016·70 cites·23 claims
- 1198US7836871B2Powerstroke crossbowKEMPF JAMES J·Filed 2007·Granted Nov 23, 2010·91 cites·20 claims
- 1297US11378350B1Projectile launching device with self-timing and without cam leanARCHERY INNOVATORS·Filed 2021·Granted Jul 5, 2022·24 cites·15 claims
- 1397US10989492B1Archery cam shaft with integrated cable trackARCHERY INNOVATORS LLC·Filed 2020·Granted Apr 27, 2021·22 cites·5 claims
- 1497US10048036B1Projectile launching device with self-timing and without cam leanKEMPF JAMES J·Filed 2017·Granted Aug 14, 2018·43 cites·17 claims
- 1597US9879938B1Reverse style crossbow having four cable pulleysISENHOWER REX E·Filed 2017·Granted Jan 30, 2018·57 cites·18 claims
- 1697US9551544B1Crossbow lock mechanismKEMPF JAMES J·Filed 2015·Granted Jan 24, 2017·30 cites·12 claims
- 1797US9377267B1Shooting bow with transitional modulesKEMPF JAMES J·Filed 2014·Granted Jun 28, 2016·78 cites·17 claims
- 1897US8104461B2Crossbow cocking assemblyKEMPF JAMES J·Filed 2007·Granted Jan 31, 2012·64 cites·20 claims
- 1997US7328693B2Reverse draw technology archeryKEMPF JAMES J·Filed 2004·Granted Feb 12, 2008·104 cites·3 claims
- 2096US11499792B1Projectile launching device with self-timing and without cam leanARCHERY INNOVATORS·Filed 2021·Granted Nov 15, 2022·17 cites·15 claims
- 2196US11268781B1Crossbow with integral cocking worm gear driven spoolARCHERY INNOVATORS·Filed 2020·Granted Mar 8, 2022·19 cites·15 claims
- 2296US10948257B1Crossbow with built in cranking mechanismARCHERY INNOVATORS LLC·Filed 2019·Granted Mar 16, 2021·29 cites·20 claims
- 2396US10139191B1Shooting bow with reduced limb travelKEMPF JAMES J·Filed 2018·Granted Nov 27, 2018·21 cites·6 claims
- 2496US9759509B1Projectile launching device with self-timing and without cam leanKEMPF JAMES J·Filed 2017·Granted Sep 12, 2017·36 cites·14 claims
- 2596US7363921B2CrossbowJ & S R D T ARCHERY·Filed 2005·Granted Apr 29, 2008·93 cites·11 claims
- 2695US11346632B1Cranking mechanismARCHERY INNOVATORS LLC·Filed 2021·Granted May 31, 2022·13 cites·15 claims
- 2795US10690436B1Crossbow with integral cocking and a moving latch assemblyKEMPF JAMES J·Filed 2019·Granted Jun 23, 2020·26 cites·14 claims
- 2895US10458742B1Projectile launching device with self-timing and without cam leanKEMPF JAMES J·Filed 2018·Granted Oct 29, 2019·27 cites·14 claims
- 2995US10359254B1Crossbow with built in electric cockingKEMPF JAMES J·Filed 2018·Granted Jul 23, 2019·28 cites·14 claims
- 3095US10018442B1Shooting bow with reduced limb travelKEMPF JAMES J·Filed 2017·Granted Jul 10, 2018·21 cites·4 claims
- 3195US9255754B1Crossbow lock mechanismKEMPF JAMES J·Filed 2014·Granted Feb 9, 2016·42 cites·12 claims
- 3295US7708001B2BowKEMPF JAMES J·Filed 2006·Granted May 4, 2010·50 cites·13 claims
- 3394US12025402B1Bowstring carrier traverseBARNETT DAVID A·Filed 2024·Granted Jul 2, 2024·9 cites·3 claims
- 3494US10012468B1Self-centering anti-dry fire device for a crossbowKEMPF JAMES J·Filed 2017·Granted Jul 3, 2018·24 cites·15 claims
- 3591US12247803B1Crossbow with inertia brake cocking deviceKEMPF JAMES J·Filed 2023·Granted Mar 11, 2025·7 cites·12 claims
- 3691US12215954B1Cranking mechanismKEMPF JAMES J·Filed 2022·Granted Feb 4, 2025·7 cites·25 claims
- 3791US8899218B2Shooting bowKEMPF JAMES J·Filed 2012·Granted Dec 2, 2014·29 cites·15 claims
- 3891US7174884B2Trigger assemblyKEMPF JAMES J·Filed 2005·Granted Feb 13, 2007·108 cites·19 claims
- 3990US8770178B2Shooting bowKEMPF JAMES J·Filed 2011·Granted Jul 8, 2014·25 cites·6 claims
- 4090US8505527B2Archery quiver attachmentKEMPF JAMES J·Filed 2010·Granted Aug 13, 2013·26 cites·7 claims
- 4189US12379180B1Crossbow with de-cocking crank mechanism having sprocketsKEMPF JAMES J·Filed 2023·Granted Aug 5, 2025·5 cites·3 claims
- 4289US10996018B1Cocking sled for a crossbowARCHERY INNOVATORS LLC·Filed 2020·Granted May 4, 2021·7 cites·12 claims
- 4389US9291421B1Assault rifle style mainframe barrel for a crossbowKEMPF JAMES J·Filed 2014·Granted Mar 22, 2016·23 cites·18 claims
- 4489US8875687B1Tangent point arrow restHUANG DORGE O·Filed 2012·Granted Nov 4, 2014·23 cites·17 claims
- 4588US9945634B1Multi-draw weight archery bow with cable timingISENHOWER REX E·Filed 2016·Granted Apr 17, 2018·12 cites·7 claims
- 4687US10139189B1Multi-draw weight archery bow with cable timingISENHOWER REX E·Filed 2017·Granted Nov 27, 2018·11 cites·8 claims
- 4785US9759510B1Vibration dampening limb boltKEMPF JAMES J·Filed 2016·Granted Sep 12, 2017·12 cites·14 claims
- 4883US10215522B1Adjustable trigger pull for a crossbowKEMPF JAMES J·Filed 2017·Granted Feb 26, 2019·10 cites·12 claims
- 4983US9372045B1Adjustable multi-level archery quiverKEMPF JAMES J·Filed 2015·Granted Jun 21, 2016·11 cites·11 claims
- 5082US10408560B1Shooting bow with reduced limb travelKEMPF JAMES J·Filed 2018·Granted Sep 10, 2019·6 cites·2 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →