who was at her door, without having to physically be at the door and without having to actually open the door. The microphones also played a vital part in her invention, as with them she could talk with whoever was outside, again without actually having to open the door and be face to face with whoever was there. As was said earlier, Marie lived in an area with high crime, and this invention she created would allow her to feel much more safe inside her home. She no longer has to open up the door to see who is there, but rather she can see from the safety of her house who is there. On August 1, 1966, Marie and her husband submitted a patent application for her invention. It would be the first patent of its kind, and her husband's name was below hers. The patent was granted by the government on December 2, 1969, and four days later, the New York Times ran an article about her invention. Response At first, the invention was difficult to sell to homebuilders because the cost of implementation was so high. The Browns initially decided to build it in their own home hoping that would spark interest in home builders. To help expand her innovation even further, Marie added in a system in which you could unlock the door using a remote. This made it so she did not have to physically get up to go to the door to unlock it, but rather could unlock the door with the click of a button, still sitting down. Marie knew this would only help them know who was at the door or attempting to enter the home but would not improve the emergency response time. Knowing that the police or security response was slow she decided that there must be a quicker way for them to alert the authorities. To do so she invented a system that contacted police and emergency responders with just the tap of a button. She and her husband cited other inventors in their patent, such as Edward D. Phinney and Thomas J. Reardon. Even now, over fifty years later, her invention is still being used by smaller businesses and living facilities. Although the system was originally intended for domestic uses, many businesses began to adopt Brown's system given its efficacy. Brown was recognized for her innovation and received