# John E. Sylvan — Patents explained on PatentBrief

John E. Sylvan has 1 landmark patent explained in plain English on PatentBrief.

- [How Keurig's Original Single-Serve Coffee Pod System Works](https://patentbrief.org/patent/us/5325765/keurig-single-serve-coffee-pod) — granted 1994
  This 1994 patent describes the original Keurig system for brewing single cups of coffee using a special filter pod that holds coffee grounds and separates them from the brewed liquid.

**Full profile:** https://patentbrief.org/inventor/john-e-sylvan

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