ULRICH KOGELSCHATZ, a physicist and engineer, died June 25, 2016, at age 79. He received his degree from Kiel University and joined the Brown Boveri Research Center in Baden, Switzerland, where he did pioneering work on non-thermal plasmas and particularly dielectric barrier discharges. In 2000 he retired as a senior scientist at ABB Corporate Research, where he was engaged in greenhouse gas plasma chemistry. The author of scientific papers, book chapters, he held international patents and served on editorial boards.