# Dale A. Heatherington — Patents explained on PatentBrief

Dale A. Heatherington has 1 landmark patent explained in plain English on PatentBrief.

- [How Modems Use Guard Time to Switch Between Data and Commands](https://patentbrief.org/patent/us/4549302/hayes-modem-escape-sequence) — granted 1985
  This patent describes a method for modems to safely switch from sending data to accepting commands without accidentally triggering that switch while transmitting normal files.

**Full profile:** https://patentbrief.org/inventor/dale-a-heatherington

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