INVENTION / COLLABORATION / INSPIRATION
Hedy Lamarr
A life beyond
the familiar story.
By Rob Urban
One box.
More of a person.
One box in the Smithsonian’s Archives Center holds correspondence, handwritten notes and sketches connected with Hedy Lamarr and George Antheil’s invention work. The collection description is wonderfully unglamorous: patent attorneys, filing actions, a notebook, letters about national defense.
I like beginning there. It gives Lamarr something more substantial than the surprise of discovering that a movie star could invent. It gives her work to examine.
She was already known to audiences through films such as Algiers and would later star in Samson and Delilah. Alongside that public career, she and Antheil developed a proposed communication system intended to make radio-controlled torpedoes harder to disrupt. Their patent was granted in 1942.
A familiar public identity can become a limit on what people expect someone to understand. Once a person is known for a particular kind of work, evidence of another ability may be treated as an amusing exception. The documents ask us to spend longer with the ability itself. Lamarr was thinking, collaborating, describing and pursuing an idea.
Changing
together.
The problem was communication under interference. A radio-controlled device depends on receiving instructions. An adversary who discovers the frequency carrying those instructions can try to disrupt them. Lamarr and Antheil proposed having the transmitter and receiver change frequencies together, making that interference more difficult.
The patent, filed June 10, 1941, and granted August 11, 1942, names Hedy Kiesler Markey and George Antheil. Markey was Lamarr’s married name at the time. It describes synchronized records, drawing on the kind of perforated paper used in player pianos, to coordinate the changes.
The interesting relationship is between movement and agreement. Changing frequencies would be little help if the receiver lost contact with its own transmitter. The proposal depended on both sides changing together. That is the intellectual pleasure in looking closely at an invention: you begin to see the constraint that gives the idea its shape.
Lamarr’s contribution becomes easier to appreciate once we give it that attention. There is a problem a person can understand, a proposed way through it and a written account others can inspect. Curiosity has become something shareable.
What a composer
could bring.
Antheil’s musical background makes the collaboration especially interesting. As the Smithsonian’s Lemelson Center explains, his ambitions for Ballet mécanique had included synchronizing multiple player pianos. The technology available to him had not fulfilled those ambitions. He also held an earlier patent involving the recording of musical notes on a paper roll.
That history gave him experience with a problem of coordination. The partnership brought it into contact with Lamarr’s idea for radio communication. Knowledge acquired in making music could be useful somewhere neither a concert program nor a studio biography would lead an audience to expect.
I admire the willingness to follow a connection that crosses a professional boundary. Doing so still requires the patient work of finding out whether the connection is useful. The analogy has to carry weight. Here, the paper record became part of the proposed mechanism, and the two names became part of the patent.
Credit is unusually satisfying when it tells us what people brought to each other. Lamarr remains at the center of this story while Antheil’s particular experience helps make the story intelligible. Collaboration gives us more to understand about both of them.
The work
between idea
and recognition.
The Smithsonian’s archive includes correspondence with their patent attorneys, Lyon & Lyon, the Patent Office and the National Inventors Council. These records concern how the invention should be described, filed and considered for national defense. Lamarr’s daughter, Denise Loder DeLuca, donated the collection in 2023.
There is a timeline. There are names, proposed mechanisms and documents created while the work was being considered. Those details bring invention down to a scale at which sustained effort becomes visible.
We often tell creative stories by jumping from an idea to the moment someone applauds it. The paperwork occupies the space between. An idea has to become clear enough for another person to question, evaluate or act on. That can require a different kind of imagination from the first insight: anticipating what someone else will need to understand.
For a writer, this is one of the pleasures of following an archive. A celebrated person comes into view through the ordinary demands of making something. We can follow the questions someone kept working on, including the ones a familiar biography barely has room to mention.
A longer time
to be understood.
The Navy declined to adopt the system, according to the Lemelson Center’s account. Recognition of Lamarr’s invention work came much later. The Electronic Frontier Foundation’s award record lists Lamarr and Antheil as special honorees in 1997, with Antheil honored posthumously.
The National Inventors Hall of Fame inducted Lamarr in 2014 and identifies the frequency-hopping system as an important development in wireless communications. The Florida Inventors Hall of Fame followed in 2019. Its biography also records her later life in Miami Beach and Central Florida.
The precise contribution is worth keeping in view. This was a jointly patented approach to frequency-hopping communication, one part of a much longer technological history. Describing it carefully lets the inventors keep their actual achievement, with its ambition and its unfinished possibilities.
Someone else
found a place in the story.
One account of Lamarr’s influence gives that later recognition a human consequence. In a 2019 UCLA interview, electrical engineering professor Danijela Cabric recalled discovering Lamarr while researching her thesis on high-speed frequency hopping. She was the only woman in her laboratory. Finding a woman who had worked on ideas connected with her own research strengthened her confidence.
That is a lovely form of inheritance. A historical record can change how someone experiences a room they are already in. Cabric was doing the work; Lamarr’s story helped widen her sense of who belonged to its history.
The part of Lamarr’s story I find most useful is the challenge it poses to a fixed public category. An audience can recognize one ability so strongly that it becomes slow to recognize another. Her example encourages a more attentive response when somebody shows us work we did not expect from them.
There is generosity in leaving that possibility open. A person’s best-known achievement gives us somewhere to begin understanding them. Lamarr’s notebook, her collaboration and the questions she pursued give us reasons to keep going.
About Hedy Lamarr’s invention work
What did Hedy Lamarr and George Antheil invent?
They jointly developed and patented a proposed frequency-hopping communication system intended to make radio control harder to disrupt. Their approach coordinated frequency changes between a transmitter and receiver.
When was their patent granted?
U.S. Patent 2,292,387, titled Secret Communication System, was filed on June 10, 1941, and granted on August 11, 1942. It names Hedy Kiesler Markey, Lamarr’s name at the time, and George Antheil.
Where are their invention papers held?
The Archives Center at the Smithsonian’s National Museum of American History holds the Hedy Lamarr and George Antheil Invention Papers. The collection includes correspondence, notes and sketches related to their work.
Sources: U.S. Patent 2,292,387; the Smithsonian’s archive and Lemelson Center; the Electronic Frontier Foundation; the National and Florida Inventors Halls of Fame; and UCLA’s interview with Danijela Cabric. Checked September 2026. Reflections are Rob Urban’s.
There is often more to a person’s work than the familiar description allows. If that interests you too, you can read more about Rob and the writing and consulting behind Paper Boat Media.