ALEXANDRIA, Va., April 21 -- United States Patent no. 12,604,904, issued on April 21, was assigned to BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY (East Lansing, Mich.).

"Gel capsules including silica gel, and related methods" was invented by John C. Wise (Bath, Mich.), Christine Vandervoort (Williamston, Mich.) and Annabel G. Wise (Bath, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to gel capsules for delivery of one or more dsRNA plant protection materials to internal tree tissue of, for example, fruit trees. The gel capsules generally include a powdered matrix comprising silica gel, dsRNA (double-stranded RNA) bound to the powdered matrix, and, a capsule shell containing t...