# Markey Hedy Kiesler — Patents explained on PatentBrief

Markey Hedy Kiesler has 1 landmark patent explained in plain English on PatentBrief.

- [Hedy Lamarr and George Antheil's Frequency Hopping Secret Communication System](https://patentbrief.org/patent/us/2292387/hedy-lamarr-frequency-hopping) — granted 1942
  A 1942 patent for a radio-controlled torpedo guidance system that used synchronized player piano rolls to hop between frequencies, preventing enemies from jamming the signal.

**Full profile:** https://patentbrief.org/inventor/markey-hedy-kiesler

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._