# Elmer A Sperry — Patents explained on PatentBrief

Elmer A Sperry has 1 landmark patent explained in plain English on PatentBrief.

- [How Elmer Sperry Invented the Gyroscopic Compass for Ships](https://patentbrief.org/patent/us/1242065/gyrocompass-sperry) — granted 1917
  A 1917 patent for a navigation tool that uses a spinning wheel to find true north without relying on magnetic compasses.

**Full profile:** https://patentbrief.org/inventor/elmer-a-sperry

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