Martha painstakingly reviewed her late husband's notes and experiments, identifying areas for improvement and innovation.

Martha conducted numerous experiments with different pyrotechnic compositions and flare designs, seeking to create a reliable and effective signaling system. She faced numerous challenges in achieving the desired brightness, color, and burn time.

Martha consulted with chemists and pyrotechnicians, seeking their advice and expertise to improve her flare designs. She demonstrated remarkable persistence in the face of skepticism and technical difficulties.

After years of tireless work, Martha applied for a patent for her improved pyrotechnic night signals and code system.

Martha Coston was granted U.S. Patent No. 31,470 for her pyrotechnic night signals and code system. This patent marked a significant milestone in her journey and paved the way for the commercialization of her invention.