JONATHAN PARTHUM UNITED STATES DEPARTMENT OF ENERGY 1000 INDEPENDENCE AVENUE SW, GC 62 ROOM 6F 048 WASHINGTON, DC 20585 UNITED STATES trademarks@hq.doe.gov, jonathan.parthum@hq.doe.gov, jennifer.mahalingappa@hq.doe.gov, robert.burns@hq.doe.gov Phone: 202-586-2000