Hedy Kiesler Markey (Hedy Lamarr) and George Antheil were granted U.S. Patent 2,292,387 for their 'Secret Communication System', a frequency-hopping spread spectrum technology. This marked a monumental achievement in radio communication and laid the groundwork for modern wireless technologies like Wi-Fi and Bluetooth. However, at the time, the invention's significance was not fully recognized by the U.S. Navy.