Brill secured a US patent for her pioneering electrothermal hydrazine thruster.
In 1972, Yvonne Brill secured a U.S. patent for her electrothermal hydrazine thruster, a significant advancement in propulsion technology. The patent underscored her contributions to satellite engineering, facilitating the stabilization and propulsion of communication satellites in orbit. This innovation highlighted her technical acumen and was instrumental in expanding satellite capabilities, laying groundwork for further advancements in space explorations.