ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,473, issued on May 20, was assigned to Perl Holdings Corp. (Big Spring, Texas).
"Well system with attached sealant line" was invented by Lance I. Robinson (Parrish, Fla.) and Erik R. Piatt (Decatur, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device and method for collecting sample fluids from an underground source which includes sample wells terminating in a corrugated conduit and sieve. The sampling regions for each sample well is separated by a grout or expanding seal barrier. Negative pressure is optionally applied to extract fluids from the underground matrix for sampling. The device can also be used for remediating an environmental ...