Motivated by concerns about security and the slow police response times in her neighborhood, Marie, with the assistance of her husband Albert, began working on a solution to protect her home. This was the genesis of her groundbreaking home security system.

Over these years, Marie and Albert refined their design, incorporating features like a motorized camera that could move between peepholes, a monitor for viewing, a two-way microphone for communication, and an alarm button to contact the police.

Marie Van Brittan Brown and Albert Brown formally submitted their patent application for their 'Home Security System Utilizing Television Surveillance'.

The United States Patent Office officially granted patent number 3,482,037 to Marie Van Brittan Brown and Albert Brown for their innovative home security system. This marked a significant achievement and recognized their contribution to the field of security technology.