US Patent Issued to Waters Technologies on Oct. 14 for "Dual stationary phase gradient columns for new selectivities in liquid chromatography" (American, French Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,801, issued on Oct. 14, was assigned to Waters Technologies Corp. (Milford, Mass.).

"Dual stationary phase gradient columns for new selectivities in liquid chromatography" was invented by Szabolcs Fekete (Ville la Grand, France) and Matthew A. Lauber (North Smithfield, R.I.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure is directed to liquid chromatography columns and methods utilizing a stationary phase sorbent having two or more gradient factors. Each of the two or more gradient factors varies in a progressive manner along a length of the stationary phase sorbent in a direction from an inlet to an outlet of the column (i.e.,...