ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,690, issued on May 6, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Ethers and esters of tertiary alkanols for use as aroma chemicals" was invented by Christoph Stock (Ludwigshafen am Rhein, Germany), Miriam Bru Roig (Ludwigshafen am Rhein, Germany), Ralf Pelzer (Lampertheim, Germany), Florian Garlichs (Lampertheim, Germany) and Manuel Danz (Ludwigshafen am Rhein, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the use of an ether or an ester of a tertiary alkanol or of mixtures of two or more ethers or esters of tertiary alkanols or of a stereoisomer thereof or of a mixture of two or more stereoi...