ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,166, issued on Dec. 9.

"Method of delivering an active compound and delivery device for use in the same" was invented by Amitabha Mitra (Saline, Mich.), Megan Gutman (Fraser, Mich.), Megan Zarembski (Ann Arbor, Mich.), Johanna Koch (Munich) and Ryan Hollingsworth (Canton, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of delivering an active compound includes providing a delivery device having a first portion. The first portion defines a first outer surface of the device. An active compound is provided in the first portion. The first outer surface exhibits a first tack after providing the active compound and a second tack of at least 2...