US Patent Issued to Halliburton Energy Services on March 4 for "Isolation device with multiple pressure stages to isolate well interval" (Texas Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,332, issued on March 4, was assigned to Halliburton Energy Services Inc. (Houston).

"Isolation device with multiple pressure stages to isolate well interval" was invented by David Earl Ball (Stafford, Texas), Marcus Ray Hudson (Pearland, Texas), Christian Reding (Houston), James Cernosek (Richmond, Texas) and Anthony Herman van Zuilekom (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A well interval isolation device is disclosed. The wellbore isolation device may have a plurality of expandable elements that cooperate upon expansion downhole in a wellbore to create multiple isolated well intervals. At least two pairs of expandable elements th...