# Colin E. Sullivan — Patents explained on PatentBrief

Colin E. Sullivan has 1 landmark patent explained in plain English on PatentBrief.

- [How CPAP Machines Gradually Increase Air Pressure for Sleeping Patients](https://patentbrief.org/patent/us/5199424/cpap-sleep-apnea-sullivan) — granted 1993
  A 1993 patent describing a CPAP machine that lets patients choose how slowly the air pressure ramps up to their therapeutic level, making it easier to fall asleep.

**Full profile:** https://patentbrief.org/inventor/colin-e-sullivan

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