# Earl S Tupper — Patents explained on PatentBrief

Earl S Tupper has 1 landmark patent explained in plain English on PatentBrief.

- [How Earl Tupper Invented the Airtight Plastic Food Container](https://patentbrief.org/patent/us/2487400/tupperware-airtight-seal) — granted 1949
  A 1947 patent for a flexible plastic container with a unique, airtight lid that seals by pressing down on the center, creating the foundation for Tupperware.

**Full profile:** https://patentbrief.org/inventor/earl-s-tupper

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