Inventor
LANDRUM DAMON T
US3 patents
Patents
3 patentsUS11661972B2May 30, 2023
PDM transmission with ball-CV torque transfer
ABACO DRILLING TECH LLC6 citations82
US12292089B2May 6, 2025
PDM transmission with articulated torque transfer
ABACO DRILLING TECH LLC0 citations59
US11815139B2Nov 14, 2023
PDM transmission with sliding contact between convex shaft pins and concave bearings surfaces
ABACO DRILLING TECH LLC1 citations59