Goddard secured two crucial U.S. patents: one for a multi-stage rocket and another for a rocket using solid fuel. These patents established his intellectual property and laid the groundwork for future innovations.

Goddard conducted numerous experiments with solid-fuel rockets, focusing on thrust efficiency and stability. He faced challenges with combustion and control but persevered in his efforts to refine his designs.

During World War I, Goddard worked on military applications of rocketry, developing a bazooka-like weapon for the U.S. Army Signal Corps. This experience provided valuable insights into propulsion and ballistics, though it temporarily diverted his attention from liquid-fueled rockets.

Goddard published 'A Method of Reaching Extreme Altitudes' by the Smithsonian Institution, outlining his theoretical calculations and experiments on rocketry. This publication, while scientifically sound, attracted public attention and sparked controversy due to its discussion of potential lunar travel.

Goddard successfully launched the world's first liquid-fueled rocket in Auburn, Massachusetts. The rocket, using gasoline and liquid oxygen, flew a short distance of 41 feet, reaching a height of 12.5 meters. This monumental achievement marked a turning point in rocketry history.

Seeking a more isolated and suitable location for his experiments, Goddard relocated his rocket research to Roswell, New Mexico, with funding from the Guggenheim Foundation. This period was marked by significant advancements in rocket design, including improvements in engine performance and control systems.

Goddard successfully tested a gyroscopic guidance system, a critical component for controlling and stabilizing rockets during flight. This innovation paved the way for more sophisticated and accurate rocket trajectories.

Goddard and his team continued to refine and improve their rocket designs, focusing on increasing altitude, range, and payload capacity. They developed advanced pumping systems, improved combustion chambers, and explored different propellant combinations.