ALEXANDRIA, Va., July 23 -- United States Patent no. 12,364,960, issued on July 22, was assigned to IFP Energies nouvelles (Rueil-Malmaison, France).

"Method for oligomerization in a reactor comprising a gas/liquid double distributor" was invented by Ludovic Raynal (Rueil-Malmaison, France), Alexandre Vonner (Rueil-Malmaison, France) and Pedro Maximiano Raimundo (Rueil-Malmaison, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a gas/liquid reactor for the oligomerization of gaseous ethylene, comprising a gaseous ethylene injection device and a liquid injection device, said injection devices advantageously being arranged so that the injection of the liquid can bring abou...