Inventor

HANNEGAN DON

US5 patents

⚠️ This page may combine multiple inventors who share the name “HANNEGAN DON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PRUITT TOOL & SUPPLY CO

3 patents

US11976523B1May 7, 2024

System and method for monitoring and maintaining hydrostatic pressure during tripping operations, stripping operations, and axial pipe operations

PRUITT TOOL & SUPPLY CO1 citations68

US11454073B1Sep 27, 2022

System and method for monitoring and maintaining hydrostatic pressure during tripping operations, stripping operations, and axial pipe operations

PRUITT TOOL & SUPPLY CO1 citations68

US12435583B1Oct 7, 2025

System and method for monitoring and maintaining hydrostatic pressure during tripping operations, stripping operations, and axial pipe operations

PRUITT TOOL & SUPPLY CO0 citations59

WEATHERFORD LAMB

1 patent

US7237623B2Jul 3, 2007

Method for pressurized mud cap and reverse circulation drilling from a floating drilling rig using a sealed marine riser

WEATHERFORD LAMB105 citations93

WEATHERFORD LAMB INC

1 patent

US10227836B2Mar 12, 2019

System and method for managed pressure wellbore strengthening

WEATHERFORD LAMB INC1 citations56