ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,403, issued on July 14.

"Releasable anchor" was invented by Attila Solyom (Edmonton, Canada), Jeffrey Golinowski (Edmonton, Canada) and Daniel P. Lupien (Edmonton, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a releasable anchor, which may be used in a thermal wellbore, such as a SAGD wellbore. The anchor may be combined with a retrievable packer assembly that mechanically locks and seals into a profile sub. The packer assembly can convert to a bridge plug and be run in place with a liner to isolate the wellbore during the liner setting stage or it can be run into a pre-installed profile sub during a work-o...