ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,839, issued on June 10, was assigned to FIRMENICH SA (Satigny, Switzerland).
"Pro-perfume compositions" was invented by Gary Womack (Plainsboro, N.J.) and Andreas Herrmann (Satigny, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a perfuming composition including at least two pro-perfume compounds selected from: a pro-perfume compound releasing a perfume compound upon exposure to light, a pro-perfume compound releasing a perfume compound upon exposure to air/oxygen, a pro-perfume compound releasing a perfume compound upon exposure to heat, a pro-perfume compound releasing a perfume compound upon exposure to moisture, a...