Every doorbell camera on every porch in America has a grandmother, and her name is Marie Van Brittan Brown. She was a nurse in Jamaica, Queens — working irregular night shifts, coming home to a neighborhood where crime was up sharply and police response was slow — and she decided that a woman alone should be able to see who was at her door without opening it. In 1969, the United States patented her answer.
Brown’s husband Albert was an electronics technician who also worked odd hours, which meant the Browns’ home kept the schedule of two essential workers — empty at strange hours, or occupied by one tired spouse at stranger ones. Marie’s design was born from that exact arithmetic: who is at the door, can I speak to them, can I let them in, and can I summon help — all without ever turning the lock.
Together they built the first home security system. A camera slid between four peepholes set at different heights, so it could see a tall man or a small child. The picture went to closed-circuit television monitors inside. Two-way microphones let the Browns speak with whoever stood outside. A button unlocked the door remotely. And an alarm could summon police or a guard. Read that list again, slowly, and check it against the app on your phone in 2026. She specced the modern smart doorbell, feature for feature, in the 1960s.
Her name, first on the patent
They filed on August 1, 1966. U.S. Patent 3,482,037 was granted on December 2, 1969 — with Marie listed first, as lead inventor — and The New York Times covered it four days later. The system was too costly to manufacture at scale in her lifetime, so the Browns never got rich from it. What it did instead was become a foundation: her patent has been cited by dozens of later patents, including early work in the lineage of today’s video doorbells.
She died in 1999, three decades before a camera on a doorbell became ordinary — before delivery drivers and porch visitors started performing for lenses her design predicted. The citation count is her royalty ledger: dozens of inventors who came after, building on the Queens nurse who wanted to answer her door safely at 3 a.m.
Marie Van Brittan Brown didn’t just invent a device. She invented a category — home security as something a household owns — and she did it from a nurse’s night-shift worry, with her name first on the patent, in 1969.
Join the conversation
Be honest: did you know a Black nurse from Queens invented the first home security system? And how many times this WEEK has your doorbell camera used her idea — the camera, the speaker, the remote unlock, the alarm? Tell us below.
Source note: Marie Van Brittan Brown’s account — a nurse in Jamaica, Queens (1922–1999) working irregular night shifts while her husband Albert, an electronics technician, also worked odd hours, amid sharply rising neighborhood crime and slow police response; the system she designed with Albert comprising a camera sliding between four peepholes at different heights, closed-circuit TV monitors, two-way microphones, a button to unlock the door remotely, and an alarm to summon police or a guard; the filing on August 1, 1966 and the grant of U.S. Patent 3,482,037 on December 2, 1969, with Marie listed first as lead inventor, covered by The New York Times four days later; the system being too costly to manufacture at scale in her lifetime; and her patent’s citation by dozens of later patents (sources give 32–38, printed here as “dozens”), including early work in the lineage of today’s video doorbells — is from the National Center for Women’s Innovations, BlackPast.org, the MIT Lemelson Center, and AfroTech.
