ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,284, issued on May 13, was assigned to EVOSEP APS (Odense C, Denmark).

"System for subjecting a sample to chromatographic analysis" was invented by Ole Vorm (Odense C, Denmark) and Nicolai Bache (Odense C, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a system for separation of analytes in a solution. The system encompasses a disposable cartridge enclosing a sorbent for binding the analytes in a solution and a conduit establishing a fluid link to a valve having a holding-loop to achieve elution through the cartridge at low pressures. The valve is switchable to a position following the elution from the cartridge for emptyin...