Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JK

John Keith — 63 Patents

KMKerr Machine: 56 patents #5 of 12Top 45%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Ardmore, OK: #2 of 110 inventorsTop 2%
Oklahoma: #58 of 12,736 inventorsTop 1%
Overall (All Time): #35,470 of 4,157,543Top 1%
63 Patents All Time
John Keith has been granted 63 US patents while listed as an inventor at Kerr Machine. The first was granted in 1989 and the most recent in December 2025. John Keith ranks #35,470 of 4,157,543 US inventors in our database (top 0.85%). Patent records list John Keith in Ardmore, OK, US.

Patents per Year

Patents granted per year, 1989 to 2025Bar chart with a peak of 30 patents in 2025.peak 301989: 1 patents19891993: 1 patents19932007: 1 patents20072021: 2 patents20212022: 3 patents20222023: 9 patents20232024: 16 patents20242025: 30 patents2025

Issued Patents All Time

Showing 1–25 of 63 patents

Patent #TitleCo-InventorsDate
12486840 Liquid cooled plunger system Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son, Guy J. Lapointe +1 more 2025-12-02
12473910 Fracturing pump arrangement using a plunger with an internal fluid passage Kelcy Jake Foster, Christopher Todd Barnett, Micheal Cole Thomas, Nicholas Son 2025-11-18
12473898 Linear drive assembly Kelcy Jake Foster, Micheal Cole Thomas, Christopher Todd Barnett, Nicholas Son, Guy J. Lapointe 2025-11-18
12421961 Fluid routing plug Nicholas Son, Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster 2025-09-23
12421945 Fluid routing plug Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son, Mark S. Nowell 2025-09-23
12404857 Cooling sleeve for use with a fluid end Micheal Cole Thomas, Christopher Todd Barnett, Nicholas Son, Kelcy Jake Foster 2025-09-02
12398710 Fluid routing plug Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son, Mark S. Nowell 2025-08-26
D1083034 Crosshead frame Kelcy Jake Foster, Micheal Cole Thomas, Christopher Todd Barnett, Nicholas Son, Mark S. Nowell +2 more 2025-07-08
12352356 Fluid end with clamped retention Kelcy Jake Foster, Micheal Cole Thomas, Christopher Todd Barnett, Nicholas Son 2025-07-08
12345254 Fluid end assembly Christopher Todd Barnett, Micheal Cole Thomas, Nicholas Son, Kelcy Jake Foster 2025-07-01
12338813 Liquid cooled plunger system Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son, Guy J. Lapointe +1 more 2025-06-24
12338815 Fluid end Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son, Mark S. Nowell 2025-06-24
12320409 Linear drive assembly Kelcy Jake Foster, Micheal Cole Thomas, Christopher Todd Barnett, Nicholas Son 2025-06-03
12313048 Fluid end assembly Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son 2025-05-27
12305628 Packing seal assembly Christopher Todd Barnett, Micheal Cole Thomas, Kelcy Jake Foster, Nicholas Son 2025-05-20
12305705 Modular crankshaft Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son 2025-05-20
12297915 Valve body Micheal Cole Thomas, Christopher Todd Barnett, Nicholas Son, Kelcy Jake Foster 2025-05-13
12297827 Fluid end with clamped retention Kelcy Jake Foster, Micheal Cole Thomas, Christopher Todd Barnett, Nicholas Son 2025-05-13
12292047 Fluid routing plug Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son, Mark S. Nowell 2025-05-06
12292040 High pressure pump Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son 2025-05-06
12281649 Fluid end Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son, Mark S. Nowell 2025-04-22
12281645 Modular power end Kelcy Jake Foster, Micheal Cole Thomas, Christopher Todd Barnett, Nicholas Son, Mark S. Nowell +2 more 2025-04-22
12276276 Fluid end Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son, Mark S. Nowell 2025-04-15
12264671 Manifold assembly Kelcy Jake Foster, Micheal Cole Thomas, Christopher Todd Barnett, Nicholas Son 2025-04-01
12264661 High pressure pump Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son 2025-04-01