Martin Cooper joined Motorola, a leading communications company. This marked the beginning of a long and impactful career that would revolutionize the way people communicate.

Cooper rose through the ranks at Motorola, becoming a division manager. This leadership role gave him the authority and resources to pursue his vision of mobile communication.

Cooper, leading a Motorola team, made the first public demonstration of a handheld mobile phone, the Motorola DynaTAC 8000x. He famously called Joel Engel at Bell Labs, a competitor, to mark the historic event. This was the culmination of years of research and development.

Following the initial demonstration, Cooper led the effort to refine and commercialize the DynaTAC 8000x. This involved overcoming significant technical challenges and navigating regulatory hurdles.

The Motorola DynaTAC 8000x, often referred to as the 'brick phone,' was commercially released. While expensive and bulky, it represented a groundbreaking achievement in mobile communication.

Even after the release of the DynaTAC, Cooper continued to contribute to Motorola's advancements in mobile technology, focusing on improved designs and increased functionality.