ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,601, issued on Dec. 9, was assigned to National Oilwell Varco LP (Houston).

"Anti-preset liner hanger systems" was invented by Fernando Olguin (Houston), Joshua Hein (Houston), Jake Hardy (Houston) and Aju Abraham (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liner hanger system deployable in a wellbore penetrating an earthen subterranean formation, the liner hanger system comprising a liner hanger installable in the wellbore and comprising one or more slips each having a radially inner run-in position and a radially outer set position configured to couple the liner hanger to a downhole tubular member located in the wellbore, and a sealin...