ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,383, issued on May 26.

"Methods of applying preparations of dyes and hydrogels to a tissue" was invented by Marc Korczykowski (New York).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a marking composition comprising a marker and a hydrogel. Disclosed is a process of forming a marking composition comprising mixing a marker and a hydrogel. Disclosed is an article comprising a marker, a hydrogel, and an implement. Disclosed is a kit comprising a marker, a hydrogel, and an implement, wherein the marker and hydrogel are combined. Disclosed is a method for marking a portion of the brain in a mammal comprising: (a) removing a portion of a mamma...